Assembling the drill bit

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Cangzhou Junwei Petroleum Machinery Co., Ltd.

Mobile/WeChat:

+86-17736975082

Mobile/WeChat:

+86-18833705803

Email:

sales1@jwdrilling.com

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It is a manufacturer of screw drilling tools, mud motors, directional joints, and adapter joints. 

ZhenHua Packing Machinery

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