... .4, 0.5mm... We can supply all kinds of steel structure, included design and manufacuture, welding beam, column, C,Z ... or EPS/ PU sandwich boards of 50mm, 75mm, 100mm. Steel structure workshop Features: 1) Prefabricated and customized design 2) Low ... Flexible layout, beautiful appearances, and higher space efficiency 5) Steel structure workshop Can be used as warehouses, workshops, shopping mall, ...