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| Address：Hebei Shengshi Tengda Steelpipe co.,ltd. |
| Zip code：061300 |
| Telephone：86-317-6191772 |
| Facsimile：86-317-6191779 |
| Contact person:Zhangyongfeng |
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  Expands the tube parameter hotly precisely
Specification model |
Carries out the standard |
Material quality |
| φ219X6-20 |
| GB/T8162-1999 |
| GB/T8163-1999 |
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| φ273X6-28 |
| φ325X6-30 |
| φ377X10-25 |
| φ426X8-30 |
| φ480X8-30 |
| φ530X8-30 |
| φ630X8-30 |
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