WINNER液压阀 RV2A3BAL
（旁通压力补偿阀，附液压功能）
RV2A3BAL/RV2A3BAK/RV2A3BAC
RV2A3BCL/RV2A3BCK/RV2A3BCC
RV2A3BWL/RV2A3BWK/RV2A3BWC