... Ads, etc)Product/Service(We Sell): Steel structure design,steel structure manufacture,steel structure build in,installation of metal doors ... of supplyEngineering&design, Fabrication&manufacturing,delivery and erection of the Prefabricated(pre-engineered) Steel Building,Space Frames, ... H-section , hot-rolled H-section, channel, steel column, steel beam),standard frames, secondary framing, roof & wall ...