... column/beamBoltanchor,ordinary,high strenght boltRoof &Wallsandwich panel or steel plateSandwich panel materialsEPS, polyurethane, rock wool, glass ... xiamen city,fujian,ChinaEmployee50Main Productlight Steel frame house,Space Frame,Prefabricated House,Steel Tower,steel villaProduction Lines2 production lines of ... Formation effect chart floor joist of light steel frame house with C beam make in china