E - Fixed Constructions – 21 – B
Inventor
E - Fixed Constructions
21
B
Inventor
Country: Canada
Assembly for locking a polished rod in a pumping wellhead
Blowout preventer with rope packing seal
Composite pumping tree with integral shut-off valve
Gate valve with tongue and groove or bridging seal to...
Gate valve with tongue and groove or bridging seal to...
Assembly for locking a polished rod in a pumping wellhead
Composite pumping tree with integral shut-off valve
Hydraulic blowout preventer assembly for production wellhead
Wellhead assembly
Wellhead casing hanger assembly
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