PHOTOGRAPHS AND RELATED TEXT ON CHICOM ELECTRONIC EQUIPMENT, READIO/TV, PRECISION AND SCIENTIFIC INSTRUMENTS

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-04546A003200020009-8
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 56
• Document Creation Date: December 15, 2016
• Document Release Date: November 13, 2003
• Sequence Number: 9
• Publication Date: March 16, 1967
• Content Type: REPORT

Approved For Release 2003/12/19 : CIA-RDP78-04546AO03200020009-8
CENTS Ind LLI NCE AO NCY
%.1 Nwwn.t a.1N..M MU 1 .N.04" ar. nfn+.,rwf Odr.wr of h* ~_., ,Into$ WOO* Ow RMMI-a4 .R 00 t/ra.lw4? fail too
it, U $.C le s, PN .. d >e, eh WUM M5Wn a, I...NN.n of .r= rt areas inhere ,round
prospecting is bent with difficulties. Cow. the :,m'a1I expn~: .
the erf:ieiency of aerial prospectin,- is ver;; and rec,uire s lit.t:e
time. That is because it is possible to ascertain easil?' the =}r 1-1:_
tribution over a broad area and provide an over-all basin for planned
exploitation. The amount of measurement work done in one year b.r one,
aircraft is equivalent to the total of that of thirty ground mna nre-
ment teams.
 Approved For Release 2003/12/19 : CIA-RDP78-04546AO03200020009-8
After the beala Z of the 3seoad fve?7ear PU* Is 1956, because
of the rise in natios]. ads on the ore resource*, China's aerial
prospecting streagO has been expanded. Qp the evidence o several years'
records, the teehnalogtoal love, has also, gtdte a bit. Ia order to
rapidly discover underground ores, aerial. liisat personnel are di-
vided in two groups, one Jr. the air and ore an the ground. When the ex-
pected situation is discovered by aerial measurements, it is immediately
investigated by grond personnel, and if the results are favorable, geo-
logical studies are made. Under this methods it often takes no more than
a few months from the beginning of aerial measurements until boring, and
in the case of one large iron ore deposit, it is said to have taken no
More than two months from the start of aerial measurement to the ascer-
taining of its value.
The greatest problem in aerial exploration is the guiding of the
aircraft's flight, but even here remarkable progress has boon Made in
these few years. At first, the method of setting up markers on tha ground
was used. This meant laying out a straight line on the ground by theo-
7olite and putting'up a large flag marker every kilometer. Since mea-
surements are fast in aerial exploration, it was necessary for the peo-
ple and cars which set up the signals to do so before the flight, which
meant a loss of manpower and time. It is obvious that this method would
not adequately answer the needs as aerial exploration came to be used
more and more. For several years radio-fix and derivational apparatus
were tested and are now in actual use. The machine could find its own
position accurately based on radio signals received over any area and
adjust the course. By using this new technique, measurement results
and geographical location were more accurately related. The laborious
work of the ground crews was eliminated, and more rapid measurennent was
made possible.
Construction of Latest Magnetometer
'.ith the development of geological research activity, a more ac-
curate measuring device was required for prospecting--particularly for
aerial magnetic exploration--and Chia had great success here also. The
youn- professors of Changchun Geogoglcal Science Academy's Physical
Frost 'ting Devices Laboratory had repeated successes from ]958 to ti-:e
present with aerial core-driven magnetometers, semi-conducting core-
driven magnetometers, and pump ma,;neto.let,~rs in research and?teast.s. The
first two ,?.;agnctometers are already L, production, and the fact '..teat
tnc edevices Gave appeared is ver n teworthy in that it ,uts an cn1 to
the backward situation in China, ?e, up to now, hi;-i.- cct racy r;a ;u -
tometers uerc imported from abroad.
The professors and students of the Chanfcht n Acad,:,- of C'o'o
Department of Phyn cal P ospertin. n od '." ?i'
are ri 'teti cal' , ^c'
c . .ta~nc.'.c .. _ in
... Aers jr: (,:,t frori abroad
from the Sovi :nion was cut of_'
 Approved For Release 2003/12/19 : CIA-RDP78-04546AO03200020009-8
Many difficulties were encountered in trial marufacturer but in
theerspir t o the out one's problems by one's own power, these were
study of the aerial core
dM
-
man magnetometer, the re-
vice.
cording device, Which
conduction-typewriter hs the point of this measuring instrument, consists
types or punched-omd types in those used
abroad, but as many deficiencies are found in the conduction-typewriter
type, an electric numeral substitution recorder was designed. The pro-
blem of au omation was resolved, and after a year's efforts, success
was obtained with the core-driven magnetometer and the semi-conducor
core-driven magnetometer.
rch and t?ial manufacture of the pump magnetometer
even more Tini>or (,:u, :: ? :, `7. was an
These measurement devices are made in several
countries abroad, but chnical data were unavailable. They had had
no contact with pump technology. 01 the detection head of this meter
there are four large points, three of which were designed and manu-
factured by the Chinese themselves. By dint o:? great effort and study
and after more than one thousand experiments in fifty odd days, they
finally succeeded in making the fourth part--an infra-rud pol,arizcr.
This trial manufacture and research were succecsi'ul.ly completed Pith
four months of the first plan due to their efforts.
The Physical Prospecting Instruments Training and Research
nittee obtained a great deal of assistance from everywhere in the s udy
and trial manufacture of this meter. More than forty .research or-c.niza_
tions, schools and factories worked for the birth of this meter. Within
the school the abilities of a lane variety of professors and student
teams were called upon.
Approximately forty professors and students pai^ticipated in re-
search and designing of the'aerial core-driven nagnetcmetr, and based
on the requirements for the parts and the general design of the :peter,
various methods were sought out. After the succe:;sful cormletion of
the general design, the various concrete problems in part:, and parts
manufacturing were gradually resolved by means of mass di;.cussions.
In the design of the auto recording device, seven types were proposed
after an analysis of the recording devices of physical prospecting
instruments and medical instruments. When comparative stucies were
made on these seven plans, there were a number of deve].op-ients and the
,electric recording m,thod emerged, signifying a breakthrough in tech-
nological obstacle :i meter design.
In the cot, _ of the research and testing, the 1.'Physisal Pros-
pecting Instruments Training and Research romittee fostr:-ea the deve-
lopment of non of talent. At first there was a scientific group con-
posed of five young professors in the Comr'iittee which war, weak, with an
average age of less than twenty-four, but now the number of professors
on the Committee is sixteen, all of ti4iom have attained a rovrnand of
IF, high vacuum, infrared and purip techniques and acquirrsd quite com_
p'ete experience in the construction of maMotometcrrs.
Research on Pros actin and Geolo-ical Facilities
Above is an example of the development of the latest measurint,
 Approved For Release 2003/12/19 : CIA-RDP78-04546A003200020009-8
tag, but the U*06t eOs't of fa+dlitieW"
for ~' investigation meat sold. the double.
a spectrophotometer sneeesstu?1y tested re.
" ur-wave broadcasts, and the darestis sale i
fairly cond.
k C /~' t~ ho .k4
Inspe and pecking "Rsiu 'r-wao?? 601-30 aria
601-b6 vacut~ tube-type radioat before $hig cnt
at the Nanking Radio Factory.
 Approved For Release 2003/12/19 : CIA-RDP78-04546A003200020009-8
QVMt 332iboo1!-67 (3 of 6)
R#OT03 AND FEATt of CHINESE INDUSTRY, No. 6 5,, 1 App31 1966
Chin?ohc, by Industrial Metropolis Developed
Yitbi_m Pest Several Lars
Chiarobou, a city in Mooning Province in lbrteast China, is currently
new
drawing atteatiom as one of China's s 5/-at industrial metropolises,
which has bstmmi , developed belatedly through the exertion of self-etfaet.
Since 1958, for #a..1., Chin-oboe has constructed 49 new industrial
including .. q, k : w (c 'j-
enterprises covering eight fields f vacuum metallurgy ei1ittes.o' quarts
glace, rare earth metals, semi-conductors, measuring instrumental we
synthetic fibers. Although all of these enterprises are small plants with
their smallest plaa* emplcyAhng several tens of employees and their largest
plant .mployying lea than 500 employees, and their equipment are practically
all self-sanafaetured or self-modified "native equipment", they are currently
producing 141 types of products and several hundred products in accordance
with specifications. The majority of those emu products are now products
that China was incapable of producing several years ago/ and the quality
processes
and prod.: - "rrusu employed are stop level" within China. Moreover,
additional new products are reportedly being trial manufactured at the
present time.
Prior to 1958, Chln,.ohou merely comprised of 25 repair ahep plants and
small agricultural accessory product processing plants. From the fact that
it had constructed now industrial enterprises one after another, Ahioh are
fairly up to date by world standards, within the past several years, it is
probably worth noting that theme industrial construction methods employed
were typical of Chinese self-effort. The current status and the construotia
methods employed by Q W various newly developed industries in Chin-chow are
as follows
M
M
a
 Approved For Release 2003/12/19 : CIA-RDP78-04546AO03200020009-8
INS It bm JkWMW
1 aetallurpy'is an advanas! V teahaique.!lmrl
reiiad
_ _L_t the highly/ 1,11 * Munk and the ht Bade alloys wltd bp-
egti; Iflt !fe
vacuum metatlurgy lsadtl~lmid~or raw materials essential to the
aircraft, electronic and, d srtsai industries. The Chin-oho. Electric !
Plant is currently msnlotaetumriuig the latest models in vacuum metallurgy
equipment. "men this plant was assigned the task of manufacturing vacuum
metallurgy equipment, it did not poems the equipment or the experience
to implement this assignment but, relying on their own efforts and abilities,
the workers of this plant devised the means to manufacture the required
equipment. In early 1961, they successfully mannsfactured their first
induction
vacuum t - /electric fur ace and, in lrtte 1961, they also maaafactmwed
the vacuum self-exhausting electrode are fiannaoe. The vacuum induction
electric furnace is capable of smelting a higher quality special refined
steel than the ordinary induction electric furnace. A major portion of the
huge volume of stainless steel used in the equipment for manufacturing
chr='ical fertilisers in China during the past several years were refined
in vacuum induction electric furnaces manufactured by China through her
own efforts. The vacuum self-exhausting electrode are furnace is used td
smelt metals having high molting points beyond the range of the vacuum
induction electric furnace such as molybdenum and titanium. Product
purity is extremely high.
In 1965, the Chin-thou 31eotric Furnace Plant successfully trial
manufactured an electronic bombarding furnace, which is only being
manufactured by a few countries throughout the world. This furnace is capable
of smelting difficult-to-melt metal. and the purity of the products refined
by this furnace is much higher than the products refined by other electric
M
M
^
M
M
 Approved For Release 2003/12/19 : CIA-RDP78-04546AO03200020009-8
furnaces. The fact that Qdna can mass produce'eus types of vacuum
metallurgy equipment is definitely an indication that she has attained
a new level in her metallic gioal techniques.
Sucosesfu ROMstie Pr d..tion of Quarts Glass
Among then 'ewortthyy results of Chinehou'a newly developing industries
is the successful domestic production of quarts glass.
Quarts glass is high grade material, heat-proof, pressure-proof and
corrosion.-proof, that can als. be used at insulation material in the
development of modern industry. The Chin-ahou Quarts Glass Plant successfully
smelted two types of quarts glass - transparent and opaque. This plant did
exalting
not possess modern/equipment but it designed an original "domestic furnace"
and proceeded to smelt bothransparent and opaque quarts glass. Presently,
this plant is producing quartz glass plates and tubes of various sizes and
shapes, and over 100 varieties of quartz glass measuring instruments. These
products are being eppplied in a steady stream to over 200 industrial plants
scientific
and/research organizations throughout China.
These various quarts glass products are products which were banned
reportedly
for exportation to China by western capitalist ccuntriea. The Soviet nnior;/
revoked her agreement to supply China certain types of urgently needed
quartz glass products. Ar ied to action by these conditions, the workers
in Chin-chow exercised -.'eir spirit of self-effort to embark on the trial
manufacture of these products. With the eitremely limited data available
at that time, the workers in Chin-chou realized that the quartz '1ass
being manufactured in foreign countries employed the high frequency method
and the glass fusion method using high frequency furnaces and cxyhydrogen
processing equipment. It became clear to them that equipment of this nature
 Approved For Release 2003/12/19 : CIA-RDP78-04546AO03200020009-8
was not available in the plants in Chin-ohou; *hat even it these emuspe'nt
could be ordered, an extremely long interval would elapse between the time
of elder and the time of delivery. Accordingly, the workers planned tapir
and
own desigq( built a simple smelting furnace from abandoned materials
collected from steel.scrap piles/. They connected two borrowed electric
welders together and used them in place of traru3formers, noured
salt water into a water tank and used it in ulace of a vo".tare regulator and,
laborious
after completing 115/teats over a period of 93 days in a make-shift wcrk4hrp,
they finally succeeded in trial ranufaeturing a 100 am diameter quartz F?lass
tube. From this unpretentious beginning, they reportedly perfected their
own new method of processing quartz glass. since this new processing method
and
dss3x t simplifies equipment manufacturing/ produces superior 'reality
products than high frequency furnaces, and since product sneeificatiors
are not restricted, this new processing method is reportedly being
employed by the other plants in China where the high frequency method is
not employable.
Heretofore, the scarce and valuable kryclite was being used to manufacture
transparent quartz glass but the workers at the Chir.`-thou Quartz Class Flant
diaccvered a new raw material which is cheat and abundant in China. In
comparing the quartz tubes made of kryoiite with those made (f this new
raw material, there are no noticeable differercee I-e fwee,: ti er,, arc; technical
studies reportedly prove that they Eire practically idertic:? in trr:r:'reur-ncy
and quality.
Farly r-evelotsnent of Transistors
!'hnufaeturing of transistors is a new technique that wse ~eve1one'
throughout the world within the past 20 years. Chin-c:hcu is - no of thc.
 Approved For.Release 2003/12/19 : CIA-RDP78-04546AO03200020009-8
? first areas is @iina to engage in the de elopeent of the mss'
transistor industry. The two transistor parts plants in Chin-Chou do not
possess modern aoistuae-proof structures and wcrkshops but they are
in accordance with
producing 11 large, sodium and small output transistors/iotas7'* g ' 14,0-odd
various products for industrial and private use
specifications. sm / such as transistorlssd
radice, listening deviceel and automatic ccntrc,l eouipment are being produced
and trial manufactured in Chin-chow at the present time.
r ne of these products - high frequency large output transistor -
required the use cf equipment such an I2)W KU "'t (sic), vaporizers,
heat rolling equipment, etc., which necessitated an investment of ever
100,000 yuan and the construction of a new building. But female technician
CAU Fang-chin, who was in charge of the trial manufacturing, of this rr,duct,
reportedl designed
AsxJgpw t/her own crude equipment and conducted test after test until t?he
finally succeeded in trial manufacturing this highly technical high frequency
large output transistor. Thereafter, at C?U Feng-ch'in'e Flant, t?-as new
product is reportedly being mass produced by a processing method unexplained
in foreign data.
F,etahlishment of the synthetic Fiber (Dtylcn) Industry
Among the emerging Industries in Chin-ch , , the synthetic fiber industry
is worthy of special mention. Chin-ch.u successfully trial 4anufac`ired
a synthetic plasticizer and, using dcmestic raw materials and e;~:ipciei;t
manufactured through her own efforts, sh cucces,9tl~liy es'rav+.eu ;:y; ,t
filaments.
In the swrner r:f l?F -, the Chin-Chou ''lr;ici ral rc tr i?
22
rarlu x/-r(rkere from varlene plants and nanufactuuring cf 'APU7 )N (; oneticJ t,'-1(n `'i ! .rrf ,;t) "'hi: C r f ,,r;
yxrssn~s
 Approved For Release 2003/12/19 : CIA-RDP78-04546A003200020009-8
prooeae was apparently a trying process. An W kt report descjbed the process
as follows a
" At that bate, one grip of speciallata o3aimed that synthetic fibers
oculd not be produced witheut a large iaodern - 'Mt and eKtuitocaent. own theist,
the process would require many years to perfect. but the plant or`enisere
did not agre . "'hey "re only prov:itied with a am-ill trial martufer,urine
fund and or animal stied borruwed fr, ac the city's business Interests. In order
to allot their meager trial manufacturirg funds to experimerital nceda, they
did not expend funds for unproductive equipment. The animal ahead e., rvrd as
their experimental labcratcry, cffie ea i dorriitory fc,r t~,P PJQ rpers.
The male wcrkers lived in tents cuto; ce the a-drnel shed. They aIt^ asizxsa~ad
built a small room with dirt and roc ,i and c-,nver?ed it into s os h&jI.
In a modern synthetic filer plant, t!:,> spinning section celene r&,qu1r^e suit
three shops. In Qontrast, their animal shed was el.ight.ly ver 5 n tern him
tall. Their plant consisted of tt
kad:rms atOra?e cars Tr-6t! r,l" on
Iirtt.Fjthe ceiling windows. When the wind b_,ew in frcm the crevices arc-,.; t--,e
ceiling window, they pluzt~g'd/ 'heee r evices with t!'eir binr,k, 4r
r,tta.'r.
tie temperature required for apt .r; n Within t,- shed. Can,:,,
under these trying Cc-nditicn:i f, r a rind of '. ur
suucFedea in spinning synthctic fiber ;'i.;wnent., ',.it.h to ccrni
a plain unf' ni:-had
th, cit
ri
y
roV;ded them wit ax/",axe
a c!,ncrete bididirig, wl1r, c.mVI trd,"
*F,11 Anril 1%1
dunsr-R a 'r}?i ng period t,f .'1 rnont h ~, t}
anc rash-?hc.d ?~:,, -St
 Approved For Release 2003/12/19 : CIA-RDP78-04546AO03200020009-8
plant producing over 100 tons et annually.
Cher Pare Earth Ne ?le . Myra r
tither notevorthy results attained by Chin-chow are the smelting of
rare earth metals and the manufacturing cf ruby for use as bearing material
for measuring instruments and precision machinery.
Known rare earth metals nu her 17 at the present time but the ma'crity
of them are just beginning to be used throughout the world. These rare earth
performance
metals cosseaa cirtain special/charsrteristica that play j vital role in
the optical glass, metallurgy and at, mic enerry i ndiie*. ?Fs. Tt e w r}-?:r:: i n
Chin-chcu groped their way through the myriad unknown factors existing in
these newly developing industries and, currently, they are s elt1'i rrious
aa*Lft alloys such as rare earth alurinum, rare earth metallic s tltr",nj and
rare earth magnesium, and they are ;?enufaeturing Froducts eu::h ee re earth
optical glass/ and rare earth graphite steel. Investigations show th,,,t. by
casting the teeth cf non-ferrous metal
with rare metals, their weight is reduced one-thirl and their :i4e x:rectancy
is prolonged more than 4-fold.
In tha field of measuring inatrtirents, Chin-chcu manutactt,rpr >t?rxg1R#~rjr
measuri r, -,.trroseopesSar high
roci
i
p
E
an
elx3ttg; gxuifait~ a;~ / Irfe- z,ri fig inntrs:ric'nts ufld at vari,
high precision machinery, and produc,, nariget.ir i 1 nstrvni ,i?
sound signalling devices and induction devices, t:ifh ter;t?;,t,i,?,e. ,.,a
crushers with graphite ute?1 reinforced
measuring instruments, etc. The Ta-li< Ir,st.runu nt Fier;+, tr, tt r;_,.
manufactured the "No Contact Point Rt:;: + ^, n,r<
:quipment" for the Ta-ch'ing (i1 Fie'.; ? }e =ruirir,~ri' Sep septerIt;er 1c)65).
Electronic Microscope
At the time of the old China, oven ordinary optical m.,cro>rores
 Approved For Release 2003/12/19 : CIA-RDP78-04546AO03200020009-8
' tioa4 lsZ$e-rises X-1's7"
China's ~ QeaastioaI
IIII
ds3 eotor foe It st~rial tee was ' atly kMmzf *tured at the
0
;ant Mn"* du T.e.an3'ae pr&rinea. q%is Zak. MW 4000tQ1 'Car
such as aviation, machinery, electricity, the chemical industry, and
plastics and food products. As a result of strict inspection by special
ti it
i
.
q
r
u
no p
This X-ray flaw detector for industrial use which wts recently
suoeessfully t,.-,mtnufaotured has high voltage, large electric
current, the depth of penetration is three times greater than
X-ray flaw detectors previously produced domestically for industrial
use, and si'ice the length of time it can be contiuuoisly utred has
increased five times, its sphere of application has been expanded
d it !-a come to more excellently fill needs of industrial sectors
relatively low, their continuous period of short, and taey cop
uirements
aduotio" re
lfill
t f
e
a
gu p
use, but the number of models was small, the:' penetration capability
IA
machine.
!teritefore, the greater part of china's flaw detectors for
industrial use have been imported. During the last few yearn, China
n roduotion nr several X-ray flaw detectors for industrial
h
s b
*ex etly doter-
06*4 !
air holes, in Steel plate of a thickness of 0.
aininc their ioes4 ant also, The quality situatio inside of 04410
nsiiuw, aluminum, and other light metals as well ~s c.o., ruober,
and other non-metallic materials, Can be olesrly i*. to with this,
v y,
iota, it was recognized that efficiency of penetration, sens
and the full-load continuous operation condition of this X-ray flaw
detector for industrial use, as well as acut,.ness of the variou:t
control mechanisms, all meet standards of design requirements (Yew
China News Agency, 21 ;ieptamber 1965).
supersonic Thickness Men.. rer
A new-model thickness measurer created Ly Chinese teciuuicians
recently entered into quantity production at the Shanghai Chungyuan
Electrical Machinery Plant. This thickness measurer which is called
a supersonic pulse-type transistor thickness measure can accurately
measure the degree of corrosion as well as excess thickness of such
things as various kinds of metal slabs, pipe, boilerrc, and high-pressure
containers while in use,, and is convenient for di:;es: emblt~d rcpaL-.
This precision measuring device is necessary in all iz.duitria1 br.r.r.cr:as
such as shipbuilding, aviation, petroleum, tnd chen'cal. ry Nctt'nific
inspection, it was determined that its structure r.: w.-li A:: ierfol?r, !ce
were both very advanced, and it i?a used at pre:,c:nt in such hranch~ j
as ship repair and the petroleum and chemical .tntdUtit":e:3, a1c1 is
producing very good results. This thickness: measurer ir> .rly clout
the size of an ordinary aluminum lunch box, and wi'.!' one o!-rt cable
attached, the total weight is only 1.6 kilograms. he nu>asurin{ d ovit e
is carried in one hand, and in one }'r,i.d is held Ht inr ens} of the 'able
whet is called a switchboard, which is a metal cap:;ile the size cl' a
thumb, s:?~' when the steel plate of the :utip's }anal r? rc?};aia? io
 Approved For Release 2003/12/19 : CIA-RDP78-04546AO03200020009-8
26 October 1964, 26 April 1965).
p
semi-conductor, is6used, su"h iroblems are solved (New China New., :64ncys
closed after measurement. In measurement of 5,000-ton ~,isips, ixom i
to 1,000 holes had to be made, and the expen3r aclu:d many thousastwla
of yuan. Not only was labor and expense involved, but tie tau:e for
the ship was long, airs it also affected the life of the steel plate
's hull If thin thicknesc measurer, w'.'ch utilizes a
of the shi
s
ru
, -V r r
was measured by making a hole in the ship's hull, welding the hole An
onance and repair of ships, it is necessary to treasure tine S.?i1 GK-caw..
ctural items and in the past, thickness of tt:?e1 plate
t
f
te
for replacing it, can be quickly determined. Its BeVitiv y
g
me
h
passed over wit s a
steel plate during navigation as well as whether there is any necessity,
t tt t~rrtit~
i t
Place* wawa UU47 ? a.. +.....~....a- -
euri device the status of corrosion of tliwr;
a
thi
lightly passed over, the inaloaror vs wsw ,...-....,
shove on the graduated scale the thickness of the steel pate at ti,att .
Supersonic Rail Flaw Detector
At the Shantou Supersonic hlectronie Equipment 7'ir nt in
Kwangtung Province, the CTS-4 ^+c'-1 ;-ail air-pressure w:!ldin,; super-
sonic flaw detector is being produced in er?ail r~::Antity. 'nhi.. :aeu.'uriu
instrument seeks out and mecsures flaws in ra:.i air reasura welding,
and its frequency is higher and sensitivity better to^.r,
supersonic flaw detectors which are :manufactured .is
frequency of 2.5 megacycles, it can seek out and uto.a ;ur?a: of
more ttian 0.3 mm. at a depth of 200 rm., whereas r. r. sn .ry ; .'.r Feet.-ct,:rs
can only seek out and measere flaws of more than 1 rig. at fc ..pt of
200 mm. The Shantou Supersonic ;;lectronic hquip:,:cn ? ''tat.,, i" a
small plant with only about 100 employees, but in tn,a print, twa rears,
it has successfully trial-manufactured new products net f -o.?ucee. very
d p~,r.7 in~tru!+s~nt8
much at other plants in China, each as ,,uperoonin
supersonic head and brain diagno, is instruments, fllww
detectors. This new rail air-prespure weldin, s cani ? deta,:tor
became necessary as the railroad branch adou.ed r.c'4 tone: ; )' ...... + nd
it was successfully trial-manufact?', ed hav i r-G b, tn cc s.iioned ::y
the Railroad Department (New China News Agency, 21 .,aptcrn.er 1565).
Also, the Wuhen Electronic 1easurint; Instrumints Plant recently
de igned a handy transistor supersonic rail fl-kw u_tector. This
measuring instrument has a welt*ht of only four kilo,raiaa, and its
vo2.:':c is alto small, and whe operating, it is not nece:.3ary to
crt: :gin the back, it being convenient ?.a carry, ;..:id the performance
of Lt,e :aea.iuring instrument is quite good rd it ten investi?ate not
only longitudinal flaws incido the rail, but a1:'o 'rte::~l o:aNC> (Jenmi
J`.?:pa.o, 27 August 1165).
 Approved For Release 2003/12/19 : CIA-RDP78-04546AO03200020009-8
of 1/1,000 ft-gram and a maximum weight capacity of 4' -ramtr was
recently manufactured at the Shanghai Scales Plant. 'the waithto
of this precision micro-scale are smaller than a ery,,tal o: wi.ite
sugar. Its sensitivity is very keen, and when a person brie his
hand near, the change in weight of an object produced by the person's
body temperatur* can be felt Ly the coals. Thus, the scale is )Iaoed
in a room with constant temperature, and isolated equipment in attao,ted
er the outside. The item tc be weigiotd and the wti ;;htn u ed. are both
Pont in t%+rough two windows by means of a revolving tray of tits eoa140
The window is always closed, and the opening and shutting is done
cor'nletel^ f? m he outside.
This -recision micro-scale is used in mea stiru:?ur.t of firut-
clase weights in state weight measurement inspection organ.:,, end It
is also necessary when measuring mass of matter in laboraturies and
test-rooms in scientific research units and universit'_:s and ssecie.l??
ized schools.
The Shanghai Scales Plant in 1960 manufactured a ml' o-scale
with a weight sensitivity of 1/200,000 gram, and subsequently at the
beginning of 1963, urIertook the task of trial-manufacturing a pre-
cision miorn-scale with a weight sensitivity of 1/1?000,000 'Oram,
and at the end of 1964 it was ouccessfully tri,.I-manufactured.
According to related data, in foreign countries, copper and aluminum
are used an material for weight levers, but the design pereonnei of
the same plant havelmade levers using a more ideal material. The weight
of this material is comparatively light, its maohanical strength high,
and the effect of heat is comparatively small. When the manufactured
article weighs matter, the error is one graduation, (1/1,000,000 gram),
and this index attains a quite advanced le?rel internationally (New
China News Agency, 17 October 1965).
The same kind of precision micro-scale is also being manu-
factured at Peking.
In addition, as related to scales, the Shanghai Tungfang :scales
Plant has this year successfully- manufactured 13 kinds of high-grade
scales. These scales are all urgently needed in Chinese ioduatry and
agriculture and in communication and transportation urdertalcings,
and included in them are important new products manufactured for the
first time in China. Among these new products are measurin,- instru-
ments for tensile strength, traction strength, and pressure, for
example, the "chain strength measurer" and the "traction a.rength
measurer," and these are used in measuring the tractive strength of
airplanes, trains, automobiles, ships, and tractors. In a~'.ition,
there are various kinds of scales for specialized use. For example,
the "photoelectric controlled automatic material mixing scale" is
used in large-sized automated enterprises, and it can autor.:tically
feed, weigh, and select Materials, and since it is photoelectrically
controlled, workers can operate it from al'ar ("ew China News ;Agency,
20 October 1965).
The Shanghai Dynamometer Plant this year manufactured three
kinds of high-precision, large woii;ht standard coals with r loading
capacity if 1, 5, and 20 kilc,rams. These standard scales are pre-
 Approved For Release 2003/12/19 : CIA-RDP78-04546AO03200020009-8
cision scales necessary in industrial and mining enterprises,
scientific research branches, and in laboratories of unirersitt418 and
specialized schools, and the i2 graduated values es are r"Y scectivelYbei.ng
0.5 mg., 2.5 ag?r and 10 mg., their precision
12,000,000 (New China News Agency, 16 April 1965)?
New-Model Carbon ?Measuring Device
A mechanical process controlled -utomatic oarbo* measiit carbon
devise which can quickly and accurately analyse the smoun
in such materials as various kinds of steel, pig iron, andcastlriron,
ra fully trial-manufactured at the Shenyang 140.
Tool Plant. .- ,1 that this carbon measuring device has a structure
which is advanced over inported carbon measuring devisee, and also
that its effici.ncy is su.i.rirr. In chemical analyses with this, the
test pieoP is put in a tube furnace and oxidized, and then it is only
necessary to turn on a switch, and the machine automatically conducts
the chemical examination in a processing manner, and in a mere three
minutes, the results of the examination are automatically andhaccurateely
shown on the graduated scale of the carbon measuring
News Agency, 13 September 1965)-
New-Model Magnetometer
The Peking Geological Equipment Plant recently manurViaotur`'d
transistor nuclear propelled type magnetometer for use in pr ,
On the basis of experimental use in field investigations, its diarern-
nent capability is much better than that of foreign pro(.ucta of tiro
same kind, and moreover, its volume is small and its weight li~ht,
and geological survey personnel report that it ha=> been demoncts+ted
to be very su':table for investitnt ing min:ral deto:,itsofuw2akr. cif,netiss
in hilly and mount a4 nous regions, and sriall quan .it.y ir, has already be{-un (Near China News Agency, 21 :;e, nLer_ 196t).
1 odel 62A :solar '1'elcucope
The rhoJel 6"A solar telescope u:;ed for ,tud,V of
pheno 1e ,a of the sun has been succosr!'ul. t,riea-ma n'si':: =y
pi or urats, parts, measuring instruments, and meters -- t:le r.1 ('tro-
ms.gnetic oscillation tester, was successfully trial-manufactu-t:d tit
the Suchou Testing Equipment Plant and hau already enterer! into
quantity production. ')oac?stically-prcduced ma'_oriAls