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Northern Oilfield Machinery

Professional manufacturer of petroleum drilling and extraction equipment and accessories

Patent Certificate

Controllable Flow Petroleum Drilling Blowout Preventer Check Valve

Controllable Flow Petroleum Drilling Blowout Preventer Check Valve

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

Specialized, Refined, Distinctive, and Innovative Small and Medium-sized Enterprises

Specialized, Refined, Distinctive, and Innovative Small and Medium-sized Enterprises

Intellectual Property System Certificate

Intellectual Property System Certificate

Business License

Business License

Wuxiao Innovation Honorary Certificate

Wuxiao Innovation Honorary Certificate

After-sales Service Management System Certificate

After-sales Service Management System Certificate

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