coring bit

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[CN] TIANJIN NOVA ENERGY TECH LTD [Manufacturer]
Key Products/Services:
Business Overview: Tianjin Nova Energy Tech Ltd(Nova Energy) dedicated to providing users with one-stop high-quality metal products,precision mechanical parts processing,drill...

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[CN] Hejian Ouman Mining Bits Co., Ltd. [Trading Company]
Key Products/Services:
Business Overview: Hejian Ouman Mining Bits is a professional manufacturer of pdc bits serving oil&natural gas, mineral exploration, coal mining, geothermal drilling and geolo...