转盘控制阀控制
swing control valve control
绞盘控制阀柱塞
winch control valve spool
绞盘控制阀组件
winch control valve group
吊钩马达控制阀滑阀
hook motor control valve spool
行驶驱动马达控制阀
travel drive motor control valve
振动器马达控制阀总管
vibrator motor control valve manifold
斗杆控制阀控制部分
stick control valve control section
绞盘控制计量泵
winch control metering pump
转盘控制阀部分
swing control valve section
转盘控制阀零件
swing control valve component