steel structure warehouse, sheds,factory Prefabricated House. Repeat use and long life. Anti-rust.low cost NameSteel Space FrameMaterialC Purlin, H Beam, Sandwich panel, Hot Galvanised Steel, etc.Features1. Firm and Artistic2. Durable for 30 years at least.3. Reusale, and Easy to intall and dismantle: usually, one worker could install 20-30 square meters per day,six workers could work out 3K*10K ...