... column, C,Z -shape purlin.Steel Structure:Specs: Steel frames: Q235, Q345, etc.Roof and Wall Panels: Steel plates of 0.4, 0.5mm ... , or EPS/ PU sandwich boards of 50mm, 75mm, 100mm. Steel structure workshop Features ... ) Flexible layout, beautiful appearances, and higher space efficiency 5) Steel structure workshop Can be used as warehouses, workshops, shopping mall ...