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DE?? ??
?? 19??? ?? ??? ??? ??? ??.
?? ???? ?? ??? ??? ??? ??? ????: ?? ??, ?? ??, ???, ????, ??????, ?? ??, ???, ?? ??, ?? ? ?? ?? ??, ?? ??.
BE-NBN, ?? ??
Professional Standard - Coal, ?? ??
US-FCR, ?? ??
BR-ABNT, ?? ??
Taiwan Provincial Standard of the People's Republic of China, ?? ??
RU-GOST R, ?? ??
Japanese Industrial Standards Committee (JISC), ?? ??
American National Standards Institute (ANSI), ?? ??
British Standards Institution (BSI), ?? ??
Danish Standards Foundation, ?? ??
International Organization for Standardization (ISO), ?? ??
SCC, ?? ??
未注明發(fā)布機(jī)構(gòu), ?? ??
Association Francaise de Normalisation, ?? ??
American Society for Testing and Materials (ASTM), ?? ??