Standard Code Name
GB Country Standard
GB/T Recommended Country Standard
GBn Country Standard (Internal Issue)
GJB Country Military Standard
ZB Standard (Specialized Standard)
ZBn Standard (Internal Issue)
ZJB Specialized Military Standard
JB Machinery Standard, Machine Building Standard (Originality)
JB/Z Guiding Document of Machine Building Ministry (originality)
EJ Nuclear Industry Standard (originality)
YB Metallurgical Industry Standard (originality)
HG Chemical Industry
Standard (originality)
SY Petroleum Department Standard (originality)
SD Water Power and Electricity Department Standard
MT Coal Industry Standard
HB Aeronautics Industry Standard
QJ Astronautics Industry Standard
QB¡¢SG Light Manufacturing Standard
JZ¡¢JG City and Countryside Environmental Protection
Standard
CB China Shipbuilding Head Office Standard
LD Labor and Personnel Ministry Standard
JC State Building Bureau standard
JJC State Metrological Bureau standard
CAS China Association for Standardization Standard
CVA China Valve Industry Standard
Q/TH Chemical Engineering and Universal Machine of Machine Building
Standard (originality)
JB/TQ Ministry of Machine-building and Electronics Industry Universal
Machine Internal Standard
H Pressure Pipe, Fitting and Fastening Piece Stable Design Standard
Main Foreign Valve
Industry Standard Code and Name
Standard Code Name
ISO International Standard
ANSI American National Standard
BS British Standard
DIN Germany Standard
NF France Standard
JIS Japanese Industrial Standard
API American Petroleum Institute Standard
ASME American Society of Mechanical Engineers Standard
ASTM American Testing and Material Standard
AISI Association of Iron & Steel Engineers Standard
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