1. Name: Square hollow section

2. Size: 30*30-1200*1200mm.

3. Thickness: 3-4mm

4. Materials: Q235, Q345, 20#, ST37, ST44, ST52, ASTM A53, ASTM A106, STKR 490 and so on

5. Use: Construction structure, machinery, hall structure, airport struture, shipbuilding, automotive parts, sun sekker, solar mount panel and so on

6. Packing: Wrapped with steel strip, suitable for shipment or as customer's requriment

7. Type: seamless  and   welded