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2018년 4월 23일

SPFH540, Improved Formability, Automobile SPFH55

SPFH540, Improved Formability, Automobile SPFH55 STEELMAX Steel Story   SPFH540의 Old Symbol은 SPFH55로, JIS G 3134, KS D 3616의 자동차용 성형성 (가공성) 열간 압연 고장력 강판 […]
SPFH540, Improved Formability, Automobile SPFH55
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