1) conveyor on/off control valve
输送机接合/分离控制阀
2) conveyor on/off control
输送机接合/分离控制
3) conveyor on/off valve
输送机接合/分离阀
4) remote conveyor swing control valve
远距离的输送机回转控制阀
5) remote conveyor swing control valve location
远距离的输送机回转控制阀部位
6) upper conveyor speed control valve
上部输送机速度控制阀
参考词条