... maintain 4.nice & durable 5.recycling& 11 years maker car exhibition hall included the main structure( steel beam/girder, ... tie-bar, etc), door and windows, and other accessories I. We have our own technical teams, so we ... Aluminum alloy and PVC) D. We also have so many accessories, for example, steel bracket, bolts, self-taping screw, ... buy them according to your exact requirement. car exhibition hall