... ,include steel workshop,steel warehouse,steel structure garage.Brand nameLongtai steel structureModel numberSteel structure garagemeterialQ235 and Q345surfaceHot-dip galvanized or paintedRoof ... ,AWS certified welder passport.We will free design the steel structure garage if you don’t have the drawing,and need ... ,such as the wind speed,snowload,earthquake and so on. high quality steel structure garage