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DE?? ??
?? 30??? ?? ??? ??? ??? ??.
?? ???? ?? ??? ??? ??? ??? ????: ????, ????, ?? ??, ???, ?? ??, ??? ??, ??, ???.
Professional Standard - Electricity, ?? ??
Professional Standard-Safe Production, ?? ??
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ??
Group Standards of the People's Republic of China, ?? ??
國(guó)家能源局, ?? ??
Professional Standard - Coal, ?? ??
Jilin Provincial Standard of the People's Republic of China, ?? ??
Hebei Provincial Standard of the People's Republic of China, ?? ??
國(guó)家市場(chǎng)監(jiān)督管理總局、中國(guó)國(guó)家標(biāo)準(zhǔn)化管理委員會(huì), ?? ??
Liaoning Provincial Standard of the People's Republic of China, ?? ??
Qinghai Provincial Standard of the People's Republic of China, ?? ??
Inner Mongolia Provincial Standard of the People's Republic of China, ?? ??
Zhejiang Provincial Standard of the People's Republic of China, ?? ??
Jiangxi Provincial Standard of the People's Republic of China, ?? ??
SCC, ?? ??
IT-UNI, ?? ??
Hubei Provincial Standard of the People's Republic of China, ?? ??
General Motors Corporation (GM), ?? ??
American Society for Testing and Materials (ASTM), ?? ??
National Metrological Verification Regulations of the People's Republic of China, ?? ??