... More than 50 years' service life 1.Metal Structure Building Main ComponentsMain FrameH beamPurlinC or Z section ... Street,Weifang city,Shandong,ChinaEmployee690R&D Staff40Main ProductSteel Structure,Space Frame,Prefabricated House,Steel TowerProduction Lines9 production ... steel plate,curtain wall and other envelope structures.EquipmentCNC pipe cutting machine, CNC hydrauic shearing machine, Hydraulic ...