压力控制安全阀
pressure controlled safety valve
压力控制顺序阀单向阀
priority valve check valve
压力控制顺序阀弹簧室
priority valve spring chamber
压力控制顺序阀调节
priority valve adjustment
压力控制顺序阀减压调节
priority valve relief setting
压力控制顺序阀进油管路
priority valve inlet line
液压安全阀压力
hydraulic relief valve pressure
铲刀控制阀安全阀
blade control valve relief valve
转向控制阀安全阀
steering control valve relief valve