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Northern Oilfield Machinery

Professional manufacturer of petroleum drilling and extraction equipment and accessories

Patent Certificate

Adjustable pressure test joint

Adjustable pressure test joint

Efficient Sealing Oil Drilling Blowout Preventer Check Valve

Efficient Sealing Oil Drilling Blowout Preventer Check Valve

Anti-backflow Petroleum Downhole Plug Valve

Anti-backflow Petroleum Downhole Plug Valve

Self-guided flow-blocking assembly

Self-guided flow-blocking assembly

A hydraulically controllable casing head

A hydraulically controllable casing head

Impact-resistant rotary check valve

Impact-resistant rotary check valve

Measurement Management System Certification

Measurement Management System Certification

Quality Management System Certification

Quality Management System Certification

Green Supply Chain System Certification

Green Supply Chain System Certification

Green Factory Certification

Green Factory Certification

Invention Patent Certificate

Invention Patent Certificate

After-sales Service Certification

After-sales Service Certification

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