比例伺服阀价格一种是开关控制：要么全开、要么全关，流量要么Z大、要么Z小，没有中间状态，如普通的电磁直通阀、电磁换向阀、电液换向阀。

R900948803DBEE6-1X/100G24K31M R901083599DBEE6-1X/100YG24K31V

E-A10VSO45DFR1/31R-PPA12N00 E-A10VS045DFR1/31R-PPA12N00 A10VSO45DR/52R-PC12N00

4WE10D33/CG24N9K4 4WE10Y33/CG24N9K4 4WE6J62/EG24N9K4