基本信息
| 出生地 | Jiangsu China (Mainland) |
|---|---|
| 牌子的名字 | shuangma |
the threads of the non-dig drill pipe produced on the company have two force regions. Such structure is designed to reduce the resistance that a drill faces during the construction process. the pipes are designed to handle high torque while retaining a large inside diameter to superior drilling fluid flow so that the threads will not deform.
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