China Price Prefab Steel Portal Frame Warehouse Building Prefabricated …
1.Free design architectural drawings 2D & 3D; 2.Structure frame design use life more than 50years; ... Ltd. has various patents and international certifications such as SGS, Bureau Veritas, EN1090 EXC2, CE, IWE, ISO9001.3.2 material certificate, welder certificate, etc. ... /Prefabricated Steel Structure Factory Warehouse Is Easy to Construct ...