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DE?? ? ???? ????
?? 25??? ?? ? ???? ????? ??? ??? ??.
?? ???? ?? ? ???? ????? ??? ??? ??? ????: ??, ?? ?? ? ?? ??? ??, ??, ?? ?? ??, ?? ? ?? ??, ?????? ??, ????, ??, ??? ? ???, ????, ?? ??? ? ??? ??, ??? ? ??? ??, ?? ??, ?? ??.
Professional Standard - Agriculture, ?? ? ???? ????
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ? ???? ????
Professional Standard - Electron, ?? ? ???? ????
Professional Standard - Light Industry, ?? ? ???? ????
Shandong 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), ?? ? ???? ????
Hebei Provincial Standard of the People's Republic of China, ?? ? ???? ????
Group Standards of the People's Republic of China, ?? ? ???? ????
Sichuan Provincial Standard of the People's Republic of China, ?? ? ???? ????
Professional Standard - Building Materials, ?? ? ???? ????