二位三通方向控制阀  two-position three way directional control valve

电动三位四通阀  electric three-potential four-way valve

三通控制阀  three-way control valve

三位四通阀  four-way valve with three-position; three-position four-way valve; three-position four way valve

四阀控制阀组件  four valve control valve group

船用齿轮方向控制阀  marine gear directional control valve

电磁方向控制阀  control valve; Solenoid directional control valve

电动液力方向控制阀  electro-hydraulic directional control valve

方向控制阀  alkaloid reagent; directional control valve; alternate forecast

起重机方向控制阀  elevator direction control valve

向前方向控制阀  forward directional spool

液力方向控制阀  hydraulic directional control valve

液压控制阀方向滑阀  hydraulic control valve directional spool

转向控制阀阀芯  directional control valve spool; direction control valve spool

斗杆控制阀控制部分  stick control valve control section

转盘控制阀控制  swing control valve control

第三方控制系统  third party control system

第三控制阀  third control valve

第三位控制  tertiary control