Valve insert
... Valve-in-head engine顶置气门策念头 Valve insert气门镶座 Valve inside气门芯 ...
INSERT,VALVE
... VALVE,OIL CONTROL 机油控制阀 INSERT,VALVE 气门镶座 UNION,MALE 阳性接头 ...
Exhaust valve insert
valve inserts
valve seat ; valve-seat insert ; valve-seat ring