联系人 Ms. sun
xuelian, Tianjin, Tianjin
The collars are made of AISI ***5H forging or finish rolling alloy structural ***** drill collar are trepanned and drifted to API Spec 7. Grinding crafts adopted finish boring technology eliminates regions of the weld stress concentration, making welding appearance more perfect, and increasing their life.
| 国家: | China |
| 型号: | APT SPEC 5D |
| 离岸价格: | 获取最新报价 |
| 位置: | - |
| 最小订单价格: | - |
| 最小订单: | - |
| 包装细节: | - |
| 交货时间: | - |
| 供应能力: | - |
| 付款方式: | - |
| 產品組 : | - |
