... Europe, Southeast Asia, Africa, Oceania, Mid East, EasternAdvantagesEasy to assemble and disassemble with simple and common tools. Good waterproof ... can be assembled quickly and accuratelyLarge steel interior spaceLikely to cause sealing structureSteel corrosivePoor fire-resistant steelRecyclable steelSteel ... materials.,etc. Large span Steel structure workshop (We can arrange engineer to help you )