3. Square Tube Specification: Diameter: 10X10mm~500X500mm Thickness: 0.5mm~25mm Length: 6m or cut as request
Addition: 1: Anti-corrosion and high-temperature resistant with hot dipped galvanizied coating or painting.
2: All the production process are made under the ISO9001: 2000 strictly
3: With BV certificate, PC certificate, ISO9001-2000, SGS inspection. 4. Standards: ASTM A500, BS1387-1985, GB/T3094-2008, JIS3466, GB/T6728-2002
5. Square Steel Tube Packing Way:
A. Galvanized: Packed by steel strips or with plastic bags B. Black steel hollow: Packed by steel strips and tarpaulin C. Woven cloth with 7 slats D. According to the requirements of customers