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| Brand Name : | OEM |
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| Certification : | API |
| Price : | Negotiation |
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| Delivery Time : | 10-20 days working days |
API 7 1/2" 190.5mm Hard Rock Water Well Drilling Bits
* This Series Tricone Bit Diameter from 3 7/8" to 36 inch, IADC Code from 117 to 137.
* Bearing : Rubber (O-Ring )Sealed Journal Bearing Bit

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| Beijing Silk Road Enterprise Management Services Co.,LTD |
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