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DE?? ????
?? 55??? ?? ????? ??? ??? ??.
?? ???? ?? ????? ??? ??? ??? ????: ?? ? ??, ?? ??, ?? ??, ??? ?? ? ??, ??, ?? ??, ?? ??? ? ?? ??, ?? ??, ????, ??, ???, ??????, ?? ???, ?? ? ?? ??, ?????? ??, ?? ? ?? ??, ?? ? ??, ?? ?? ??.
Professional Standard - Traffic, ?? ????
Liaoning Provincial Standard of the People's Republic of China, ?? ????
Chongqing Provincial Standard of the People's Republic of China, ?? ????
Beijing Provincial Standard of the People's Republic of China, ?? ????
Shaanxi Provincial Standard of the People's Republic of China, ?? ????
Guangdong Provincial Standard of the People's Republic of China, ?? ????
Guangxi Provincial Standard of the People's Republic of China, ?? ????
工業(yè)和信息化部, ?? ????
Jiangsu Provincial Standard of the People's Republic of China, ?? ????
中國民用航空局, ?? ????
Group Standards of the People's Republic of China, ?? ????
British Standards Institution (BSI), ?? ????
Shanxi Provincial Standard of the People's Republic of China, ?? ????
Jiangxi Provincial Standard of the People's Republic of China, ?? ????
US-FCR, ?? ????
SCC, ?? ????
Professional Standard - Petroleum, ?? ????
Ningxia Provincial Standard of the People's Republic of China, ?? ????
Hebei Provincial Standard of the People's Republic of China, ?? ????
Qinghai Provincial Standard of the People's Republic of China, ?? ????
Jilin Provincial Standard of the People's Republic of China, ?? ????
Tianjin Provincial Standard of the People's Republic of China, ?? ????
GB-REG, ?? ????
Zhejiang Provincial Standard of the People's Republic of China, ?? ????
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ????
Yunnan Provincial Standard of the People's Republic of China, ?? ????
Henan Provincial Standard of the People's Republic of China, ?? ????
Gansu Provincial Standard of the People's Republic of China, ?? ????
Inner Mongolia Provincial Standard of the People's Republic of China, ?? ????