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Nera Petroleum Mechanical Manufacture Co., Ltd.

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No. 2 Juzhou Road, Dongying Developing Zone , Dongying, China

86-546-8175080

Anna Guo

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back-pressure valveBack-pressure Valve Nera back-pressure valve is according to API standard and achieved theNational Utility Model. Floating valve is a new-style blowoRemote Controllable StabilizerIt can control deviation of drill string without making a trip so as to control accurately the bevel of directional well and horizontal well and reduOil Pressure Tapered StabilizerOil Pressure Tapered StabilizerCompared with the previous centering devices, this product is securer and more stable, and it is good in reducing fricCasing ProtectorCasing ProtectorCasing protector is used to connect to DP to form a brace to avoid DP connection wearing casing as well as reduce torque to protect DNon-magnetic Drill CollarNon-magnetic drill collarDrill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can

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