www.1o13.cn-欧美精品黑人性xxxx,草莓视频在线观看在线观看视频,免费一级欧美片在线观看欧美,国产精品视频免费看

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.
Design drawings

Steel beam and steel column connection

a

steel frame picture

Wall installation

overall graph