| Section Shape |
Square |
| Standard |
GB |
| Grade |
ST35-ST52 |
| Place of Origin |
Hebei China (Mainland) |
Product;square steel tube Material:Q235,Q345,20#,ST37,ST44,ST52 and so on. Specification:20*30-400*500 the wall thickness between:2-20mm Standards:GB/T3094-2000,GB/T6728-2002,ASTM A500,JIS G3466 Use: construction structure, machinery, hall structure, shipbuilding, automotive parts,siolar Mount Panel Rails Sun Seeker.