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DE?? ??
?? 42??? ?? ??? ??? ??? ??.
?? ???? ?? ??? ??? ??? ??? ????: ?? ? ??, ???, ???, ???, ???, ????, ??, ??? ?? ??, ?? ??, ??, ???, ??, ?? ?? ? ?? ??? ??, ??, ?? ? ? ??, ??? ???.
Professional Standard - Forestry, ?? ??
Heilongjiang Provincial Standard of the People's Republic of China, ?? ??
中華人民共和國國家質量監督檢驗檢疫總局、中國國家標準化管理委員會, ?? ??
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ??
Fujian Provincial Standard of the People's Republic of China, ?? ??
水利部, ?? ??
Professional Standard - Water Conservancy, ?? ??
Group Standards of the People's Republic of China, ?? ??
Sichuan Provincial Standard of the People's Republic of China, ?? ??
Professional Standard - Agriculture, ?? ??
Guizhou Provincial Standard of the People's Republic of China, ?? ??
Guangdong Provincial Standard of the People's Republic of China, ?? ??
Jiangsu Provincial Standard of the People's Republic of China, ?? ??
農業農村部, ?? ??
Hubei Provincial Standard of the People's Republic of China, ?? ??
US-CFR-file, ?? ??