Our versatile prefab portable building is made of special shaped steel (galvanized).The girders and stairs of our portable building are welded. Doors and windowsare made of aluminum alloy. Advantages of our portable building: 1. Reliable structure: light steel structure is the frame of our building, whichmeets the design requirements of steel structure. 2. Easy to install and disassemble: standardized components make it easy to easyto install and dismantle. It is especially suitable for emergency projects. 3. Attractive appearance: because repainted steel sheet is adopted, the whole structureis handsome. 4. Environmentally friendly and economical: reasonable design makes it reusable.The reusable character makes it environmentally friendly and economic. 5. Cost efficient: first class material, reasonable price, once and for all investment,low requirements for base and short completion time make it cost low. 6. Can be relocated: it can be relocated up to 10 times. It has 15 to 20 years durability.7. Other advantages: various specifications are available. It is of high strengthand shock resistance. It is well insulated against sound and heat. 8. Uses: ideal for temporary applications including temporary dormitory, school,hospital, exhibition hall, garage, gas station, shop, office and toilet. producing area:China