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PDC Three Wings Concave Drill Bit,PDC Concave Bit, Non Core Drill Bit For Mining |
| Create: 01/14/2017 |
| Expired Date: | 01/14/2019 |
| Category: | Equipment&Machinery |
| Message: | PDC concave drill bit is mainly used for drilling soft-medium formation, such as mud shone, limestone, shale, sandstone and granite etc, it has been wildly used to penetrate the degassing hole, drain hole and grouting hole of coal mine, water, road construction, bridge and building. The three wings normal type concave drill bits suits for f |
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| City: | Xian[CN]
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| Location: |
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