日韩女同强女同hd-日韩女优网站-日韩女优一区-日韩女优在线-免费在线日韩-免费中文字幕视频

Nigeria 4 storey office steel building

Steel Structure 4 Floor Office In Nigeria

Steel Structure 4 Floor Office In Nigeria have special design.The whole frame use for the steel structure.The main frame use the H beam ,wall frame use the keel steel to do.About the floor use for the floor decking steel sheet ,included the stairs.The whole installation time just use the 2 months.

Steel beam and steel column connection

a

steel frame picture

Wall installation

overall graph