Pneumatic manual pressure regulator JYSQ-21,25B
Promulgator
：admin Time：2020-10-20
BOP support ring wear ring F35-15
Wear ring F35-19 for the piston of the blowout preventer (cup AE1068x13.5)
Drain valve, relief valve JYS-25,20 (FKQ blowout preventer China)
Pneumatic manual pressure regulator JYSQ-21,25B (FKQ blowout preventer China)
Overflow unloading valve JYS-21.25 (FKQ blowout preventer China)
Rubber element FH35-35 (rubber ball core F35-11) blowout preventer China
