1) retarder control valve spool
减速器控制阀滑阀
2) retarder control valve body
减速器控制阀体
3) retarder hand control valve
减速器手控制阀
4) retarder control valve
减速器控制阀
5) retarder valve spool
减速器滑阀
6) speed control valve spool
速度控制阀滑阀
参考词条