发明名称 Nx steel lumber
摘要 The invention is a cold formed, steel metal C-shaped structural member having an elongated web member with novel opposing angular intervening web extensions with variable exaggerated bends and extending laterally to opposing perpendicular flange members and extending to opposing end stiffening lips parallel to the center web member at the cross sectional ends.
申请公布号 US2007095002(A1) 申请公布日期 2007.05.03
申请号 US20050261192 申请日期 2005.10.28
申请人 KIM-WHITTY SUK K 发明人 KIM-WHITTY SUK K.
分类号 E04C3/30 主分类号 E04C3/30
代理机构 代理人
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