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| Company Name : | TAIYUAN ROLLED MILL TRADE CO., LTD. |
|---|---|
| Contact Person | TAIYUAN ROLLED MILL TRADE CO., LTD. |
| Contact Number | 636937713 |
| Call Now | |
It is knew that after researchers long years have been studied the result achieved, in failure analysis drilling rod and whole drilling rod, the steel quality is main reason to effect to drilling rod service life after its geometry parameter reasonable, steel, and production process so the steel quality standard must up to level range.
This process achieved on a basic after we analysis of serious production process in domestic and abroad.