Non magnetic drill collar API Spec7
Product Details
Supplier Information
Weigao Petroleum Drilling Tools Manufacturing Co., Ltd.
Main Products: | Drill Collar,Kellys,Intergral Heavy Weight Drill Pipe,non-excavation drill pipe |
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Weigao Petroleum Drilling Tools Manufacturing Co., Ltd.
Main Products: | Drill Collar,Kellys,Intergral Heavy Weight Drill Pipe,non-excavation drill pipe |
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