... resistance 3)Easy to install and fast construction 1. Metal Structure Main Components Main FrameH beamPurlinC or Z section steelBracecross support ... ,Xinhai Street,Weifang city,Shandong,ChinaEmployee690R&D Staff40Main ProductSteel Structure,Space Frame,Prefabricated House,Steel TowerProduction Lines9 production lines ... T or L/CWebsitewww.wfhyco.com3.Manufacturing Process Light Metal structure