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Northern Oilfield Machinery

Professional manufacturer of petroleum drilling and extraction equipment and accessories

Patent Certificate

A high-sealing leak-proof casing head for oilfield wellheads

A high-sealing leak-proof casing head for oilfield wellheads

A type of plug valve

A type of plug valve

A bidirectional sealed plug valve for petroleum drilling

A bidirectional sealed plug valve for petroleum drilling

A rotary plug valve for square drill rods used in petroleum drilling blowout prevention

A rotary plug valve for square drill rods used in petroleum drilling blowout prevention

A spherical reaming drill stabilizer

A spherical reaming drill stabilizer

A sand-cleaning and well-perforating tool

A sand-cleaning and well-perforating tool

An arrow-shaped check valve

An arrow-shaped check valve

A check valve for anti-corrosion and blowout prevention in petroleum drilling and extraction

A check valve for anti-corrosion and blowout prevention in petroleum drilling and extraction

A multi-stage petroleum drilling stabilizer

A multi-stage petroleum drilling stabilizer

A petroleum drilling stabilizer with anti-wear sleeve

A petroleum drilling stabilizer with anti-wear sleeve

Quick Switch Standard Sleeve Head 2020

Quick Switch Standard Sleeve Head 2020

Quick Switch Standard Coupling Head 2019

Quick Switch Standard Coupling Head 2019

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