Best Price on China ASTM A500 Grade Black Square Steel Pipe
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| Product | Square Tube |
| Process | Electrical Resistance Weld |
| Standard | ASTM A53,ASTM A500, EN 10210 ,EN 10219, JIS G 3466 ,BS 1387 |
| Material | GRB,GRC,S235JR,S275JR,STK400,STK500 |
| O.D | 10*10-600*600MM |
| W.T | 0.5-20MM |
| Length | As per customer’s requirement |
| Coating | Oil.Galvanized coating |
| Application | Used for Structure |
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