Product Description
| Product ： | Rectangular or Square Hollow Sections/ Steel Tubes |
| Stardards： | ASTM, JIS, GB |
| Grade： | A500 GrA/B/C, STKR400/490, Q195, Q235, Q345 |
| OD： | 12*12-500*500mm |
| Thickness ： | 0.5-20mm |
| Length ： | 3-18m or as you need |
| Technique ： | Cold rolled, Hot rolled |
| Surface Treatment： | Galvanized, Oil, Paint, Drilled |
| Certification ： | ISO, BV, SGS |