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DE?? ?? ??
?? 34??? ?? ?? ??? ??? ??? ??.
?? ???? ?? ?? ??? ??? ??? ??? ????: ??, ???, ?? ??, ?? ??, ??.
Group Standards of the People's Republic of China, ?? ?? ??
Hebei Provincial Standard of the People's Republic of China, ?? ?? ??
British Standards Institution (BSI), ?? ?? ??
Spanish Association for Standardization (UNE), ?? ?? ??
SCC, ?? ?? ??
German Institute for Standardization, ?? ?? ??
Tianjin Provincial Standard of the People's Republic of China, ?? ?? ??
Association Francaise de Normalisation, ?? ?? ??
GOST, ?? ?? ??
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ?? ??
Shanxi Provincial Standard of the People's Republic of China, ?? ?? ??
Shandong Provincial Standard of the People's Republic of China, ?? ?? ??
Henan Provincial Standard of the People's Republic of China, ?? ?? ??
IN-BIS, ?? ?? ??
Jiangsu Provincial Standard of the People's Republic of China, ?? ?? ??
國(guó)家認(rèn)證認(rèn)可監(jiān)督管理委員會(huì), ?? ?? ??