Industry standard classification

All industry classifications
BB (packaging) AQ (safety production)
CB (Ship) CJ (Urban Construction)
CH (Surveying) CY (News and Publishing)
DA (Archive) DB (Earthquake)
DL (Electricity) DZ (Geology and Mineral Resources)
FZ (Textile) EJ (Nuclear Industry)
HG (Chemical) GH (Supply and Marketing Cooperation)
GM (State Secrets) GY (Radio, Film and Television)
HB (Aviation) GA (Public Safety)
HS (Customs) HJ (Environmental Protection)
HY (Marine) JB (Mechanical)
JC (Building Materials) JG (Construction Engineering)
JR (Finance) JT (Transportation)
JY (Education) LB (Tourism)
LD (Labor and Labor Safety)
LS (Grain) LY (Forestry)
MT (coal) MH (civil aviation)
MZ (Civil Affairs) NB (Energy)
NY (Agriculture) QB (Light Industry)
QC (Automotive) QJ (Aerospace)
QX (Meteorology) RB (Certification and Accreditation)
SC (Aquaculture) SB (Domestic Trade)
SF (Judicial) SH (Petrochemical)
SJ (Electronics) SL (Water Resources)
SN (Entry Exit Inspection and Quarantine)
SW (Taxation) SY (Oil and Gas)
TY (Sports) TB (Railway Transportation)
WH (Culture) TD (Land Management)
WM (Foreign Trade and Economic Cooperation) WB (Material Management)
WS (Health) WJ (Ordnance and Civil Products)
XB (Rare Earth) WW (Cultural Relics Protection)
YC (Tobacco) YB (Black Metallurgy)
YD (Communication) YS (Nonferrous Metals)
YY (Pharmaceutical) YZ (Postal)
ZY (Traditional Chinese Medicine)