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DE??? ??tga
?? 10??? ??? ??tga? ??? ??? ??.
?? ???? ??? ??tga? ??? ??? ??? ????: ??, ?? ??, ?? ? ???? ??.
(U.S.) Ford Automotive Standards, ??? ??tga
British Standards Institution (BSI), ??? ??tga
American Society for Testing and Materials (ASTM), ??? ??tga
Spanish Association for Standardization (UNE), ??? ??tga
German Institute for Standardization, ??? ??tga