KOMPASS电液换向阀部分常规型号参考：4WEH-10 , 4WEH-10-H , 4WEH-16 , 4WEH-16-H , 4WEH-22 , 4WEH-22-H , 4WEH-25 , 4WEH-25-H , 4WEH-32 , 4WEH-32-H , 4WH-10 , 4WH-10-H , 4WH-16 , 4WH-16-H , 4WH-22 , 4WH-22-H , 4WH-25 , 4WH-25-H , 4WH-32 , 4WH-32-H