A.提升閥 B.旋轉(zhuǎn)閥 C.泄壓閥 D.提升閥和旋轉(zhuǎn)閥
A.濾網(wǎng)(Filter screen) B.主閥(Main valve bell) C.限流環(huán)(Restrictor) D.鐘形彈閥(Valve bell spring)
A.SNT B.SDM C.UPA D.BullPlug