group nameDownhole Tools
Min Order1 piece
update timeMon, 08 Apr 2013 00:31:10 GMT
Processing Type Casting
Machine Type Drilling Equipment
Type Drop-in check valve
Use Well Drilling
Certification API
Material Iron
Min Order1 piece
drop-in check valve
Back pressure sub is connected with stop ring and tightened on and put into downhole with drill string. Back pressure sub is used as a sub above drill string before check valve assembly is run into downhole.
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