起作用的缸筒活塞密封
affected cylinder piston seal
倾斜油缸活塞密封垫
tilt cylinder piston seal
随动油缸活塞密封
slave cylinder piston seal
液压缸活塞密封
hydrodynamic piston reciprocating seal
制动缸活塞密封
brake cylinder piston seal
主缸活塞密封泄漏
master cylinder piston seal leak
转盘油缸活塞密封件
swing cylinder piston seal