2012년 10월 9일

SN400A Carbon Steel for Building Structure

SN400A Carbon Steel for Building Structure STEELMAX Steel STory   건축구조용 후판의 강종으로는 SN400A , SN400B , SN400C , SN490B , SN490C 5종류가 있습니다. SN강재의 특성 […]
SN400A Carbon Steel for Building Structure
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