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DE???, d ??
?? 59??? ???, d ??? ??? ??? ??.
?? ???? ???, d ??? ??? ??? ??? ????: ???? ??? ?? ? ??, ???? ??, ?? ??, ????, ?? ??, ?? ??, ??? ? ???, ?? ????, ??????, ?? ??, ??(?? ? ??), ?? ??, ?? ??, ?? ??, ??? ??, ?? ? ??, ?? ? ???? ??, ????, ???, ???, ??? ????, ???, ??, ??????, ?? ??.
Group Standards of the People's Republic of China, ???, d ??
Hebei Provincial Standard of the People's Republic of China, ???, d ??
工業(yè)和信息化部, ???, d ??
RU-GOST R, ???, d ??
British Standards Institution (BSI), ???, d ??
SCC, ???, d ??
CZ-CSN, ???, d ??
German Institute for Standardization, ???, d ??
International Electrotechnical Commission (IEC), ???, d ??
Association Francaise de Normalisation, ???, d ??
ES-UNE, ???, d ??
International Organization for Standardization (ISO), ???, d ??
American Society for Testing and Materials (ASTM), ???, d ??