... easy construction,time and labor-saving 4.flexible layout Longtai metal houses include light steel prefab houses, and steel structures. ... workshops, warehouses, mess halls, cabins, sentry boxes and villas, etc. Metal House Steel frames: Q235 and Q345; surface hot-dip galvanized ... painted; length, width, and height according to Buyers requirementsWall and roof panels: 0.4, 0.5mm galvanized sheet, or 50, ...