... purlin/column/beamBoltanchor,ordinary,high strenght boltRoof &Wallsandwich panel or steel plateSandwich panel materialsEPS, polyurethane, rock wool, glass woolWindowPVC or aluminum ... ,Xiangan district ,xiamen city,fujian,ChinaEmployee50Main Productlight Steel frame house,Space Frame,Prefabricated House,Steel Tower,steel villaProduction Lines2 production lines of light ...