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DE??? ???? ???
?? 6??? ??? ???? ???? ??? ??? ??.
?? ???? ??? ???? ???? ??? ??? ??? ????: ???, ?, ?? ??.
Professional Standard - Building Materials, ??? ???? ???
Anhui Provincial Standard of the People's Republic of China, ??? ???? ???
Military Standard of the People's Republic of China-General Armament Department, ??? ???? ???
Group Standards of the People's Republic of China, ??? ???? ???
工業(yè)和信息化部, ??? ???? ???