差速器总成法兰
differential assembly flange
差速器总成螺栓
differential assembly bolt
齿轮总成安装
gear assembly installation
唇型密封圈总成安装
lip type seal assembly installation
电磁阀总成螺母
solenoid valve assembly nut
电刷总成连续性试验
brush assembly continuity test
缸盖总成螺母
cylinder head assembly nut