2012년 10월 28일

ASTM A53 Grade B, SMLS and Welded Pipe

ASTM A53 Grade B, SMLS and Welded Pipe STEELMAX Steel Story   ASTM A53 은 배관용 탄소강과 또는 압력배관용 탄소강관에 나타나는 규격입니다. For use conveying gas, water […]
ASTM A53 Grade B, SMLS and Welded Pipe
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