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A type of sucker rod blowout preventer bearing valve plate
LIP SEAL sealed structure ball valve
PR2 performance level flat gate valve
Composite metal sealing sleeve head
Quick installation wellhead device
Eccentric cable wellhead device
Eccentric rotating ball valve
Bidirectional metal sealed expansion valve
Four eccentric frictionless wedge-shaped butterfly valve
A convenient oil barrel for handling and storage
A ultra-low temperature flat gate valve
A high-pressure side press fit hard sealed ball valve
A high-pressure upper hard sealed ball valve
A super small caliber built-in double disc check valve
A single channel combination valve device
A single tube dual tube wellhead device
A low torque track ball valve
A low torque track plug valve
An electric sleeve type adjustable flow valve
An electronic testing equipment for testing petroleum machinery components
A multi-layer quick installation wellhead device
A valve stem split needle throttle valve
A straight through general sleeve type throttle valve
A three plate guide aluminum alloy vertical one-way valve with external thread joint
An anti erosion adjustable high-pressure throttle valve suitable for oil and gas fields
A gas sealed built-in double disc check valve
A sulfur resistant and hydrogen resistant ultra-high pressure hydraulic safety valve
A needle valve for subsea oil trees
A subsea oil tree ball valve
A control valve for subsea oil trees
A subsea oil tree throttling valve
A sand control structure ultra-high pressure fracturing valve
An automatic feeding device for valve cleaning machine
A multi angle polishing device for valve processing
A multifunctional welding device for valve processing
A low leakage ultra-high pressure flat valve
Automatic cutting fluid proportioning equipment
Ultra high pressure DBB function double ball valve
International PCT Patent: A Valve Surface Treatment Device
International PCT Patent: Automatic Loading Device for Valve Cleaning Machine
Self standing recirculation control valve
Integral V-shaped ball valve
A pre tensioning device for uniformly compressing self centering anti lateral loading fillers
A one-piece casing head device
A hydraulic ground safety valve
A new type of tubing hanger
A new type of casing head device
A bidirectional adjustable lift check valve
A dual elastic lip floating ball valve
A low leakage dynamic loading packing sealing structure suitable for ball valves
A collection tank for oil drilling fluid vibrating screen
An automatic viscosity measurement device for petroleum drilling fluid
A fast clamping tool for petroleum machinery
A type of oil pipeline monitoring earpiece
A connection structure between a sphere and a valve stem
A pneumatic ground safety valve
A sealed pneumatic control valve top mounted handwheel actuator
A two-point self centering quick clamping device
A triple valve stem dynamic sealing device that resists infiltration of internal and external particulate media
A low-noise structure regulating valve
A clamp connected sleeve head device
A three eccentric butterfly valve with active self loading and self sealing packing system
A compact axial check valve
A compact fixed ball valve
A metal sealed oil pipe head device
A metal sealed underground safety valve
A modular quick installation regulating valve
A high-pressure large-diameter double disc clamp check valve
A high-performance sealed double seat structure regulating valve
A split type casing hanger
Adjustable throttle valve with fireproof design
A valve labor-saving transmission mechanism
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