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DE???? ???? ???
?? 56??? ???? ???? ???? ??? ??? ??.
?? ???? ???? ???? ???? ??? ??? ??? ????: ??? ? ???, ?? ??? ?? ? ????, ??? ?? ??, ???, ???, ???.
British Standards Institution (BSI), ???? ???? ???
Korean Agency for Technology and Standards (KATS), ???? ???? ???
German Institute for Standardization, ???? ???? ???
Association Francaise de Normalisation, ???? ???? ???
International Organization for Standardization (ISO), ???? ???? ???
European Committee for Standardization (CEN), ???? ???? ???
CH-SNV, ???? ???? ???
National Metrological Verification Regulations of the People's Republic of China, ???? ???? ???
RU-GOST R, ???? ???? ???
GSO, ???? ???? ???
Danish Standards Foundation, ???? ???? ???
American Welding Society (AWS), ???? ???? ???
WRC - Welding Research Council, ???? ???? ???
Lithuanian Standards Office , ???? ???? ???
Spanish Association for Standardization (UNE), ???? ???? ???
SCC, ???? ???? ???
Society of Automotive Engineers (SAE), ???? ???? ???
Group Standards of the People's Republic of China, ???? ???? ???
SAE - SAE International, ???? ???? ???
GM Holden Ltd, ???? ???? ???