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DE?? ???
?? 29??? ?? ???? ??? ??? ??.
?? ???? ?? ???? ??? ??? ??? ????: ?? ??, ?? ??, ??, ?? ? ?? ??, ?? ???, ?? ? ???, ???, ????.
German Institute for Standardization, ?? ???
Professional Standard - Machinery, ?? ???
PL-PKN, ?? ???
SCC, ?? ???
Spanish Association for Standardization (UNE), ?? ???
British Standards Institution (BSI), ?? ???
API - American Petroleum Institute, ?? ???
DE-VDA, ?? ???
American Society for Testing and Materials (ASTM), ?? ???
Group Standards of the People's Republic of China, ?? ???
GSO, ?? ???