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DE?? ?? ?? ??
?? 25??? ?? ?? ?? ??? ??? ??? ??.
?? ???? ?? ?? ?? ??? ??? ??? ??? ????: ?? ??, ?? ??, ??, ??, ????, ????.
國家市場監督管理總局、中國國家標準化管理委員會, ?? ?? ?? ??
Professional Standard - Urban Construction, ?? ?? ?? ??
Shandong Provincial Standard of the People's Republic of China, ?? ?? ?? ??
Group Standards of the People's Republic of China, ?? ?? ?? ??
SCC, ?? ?? ?? ??
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ?? ?? ??
Jiangsu Provincial Standard of the People's Republic of China, ?? ?? ?? ??
Beijing Provincial Standard of the People's Republic of China, ?? ?? ?? ??
American National Standards Institute （ANSI), ?? ?? ?? ??
Institute of Electrical and Electronics Engineers (IEEE), ?? ?? ?? ??
Liaoning Provincial Standard of the People's Republic of China, ?? ?? ?? ??
Shaanxi Provincial Standard of the People's Republic of China, ?? ?? ?? ??