辅助阀 先开阀

jockeyvalve  detail>>

先开阀

jockey valve  detail>>

辅助阀

auxiliary ale auxiliary valve booster valve jockey valve service valve  detail>>

倒车辅助阀

astern guardian valve  detail>>

辅助阀；溢流阀

auxiliary valve  detail>>

辅助阀门

supplementary valve  detail>>

辅助阀座

auxiliary valve seat  detail>>

辅助阀(暖汽调整阀用)

auxiliary valve  detail>>

开阀

lift valve  detail>>

补助阀

supplementary valve  detail>>

常开阀

normal open valve normally open valve  detail>>

敞开阀

full-opening valve  detail>>

断开阀

disconnecting valve  detail>>

快开阀

quick opening valve quick-opening valve snap action valve  detail>>

起开阀

fail-closed valve  detail>>

全开阀

clear way valve clearway valve  detail>>

双开阀

db valve  detail>>

速开阀

quick-opening valve  detail>>