2D电液控制阀
Two-dimensional control valve
l-形功率控制阀
l-power mode control valve
S-功率模式控制阀
s-power mode control valve
安全阀控制提动头
relief valve control poppet
泵调节器阀控制
pump regulator valve control
比例阀控制
Proportional valve control
比例阀控制机构
control mechanism of proportional valve
比例控制阀
proportional control valve
变矩器出油压力控制阀组
torque converter outlet pressure control valve group