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DE?????? ??
?? 5??? ?????? ??? ??? ??? ??.
?? ???? ?????? ??? ??? ??? ??? ????: ?? ??, ???, ??? ?? ? ?? ??.
(U.S.) Ford Automotive Standards, ?????? ??
Japanese Industrial Standards Committee (JISC), ?????? ??
SCC, ?????? ??
Professional Standard - Petrochemical Industry, ?????? ??