WHG-031/75WHG-031/100维拓斯减压阀报价WHG-031/32WHG-031/50，WHG-031/75WHG-031/100，WHG-031/210WHG-033/32WHG-033/50WHG-033/75WHG-033/100WHG-033/210WHG-034/32WHG-034/50WHG-034/75WHG-034/100WHG-034/210WKG-031/100WKG-031/210WKG-033/100WKG-033/210WKG-034/100WKG-034/21WHG-031/75WHG-031/100维拓斯减压阀报价苏州科士华机电设备有限公司压力特性：它是指流量g为定值时，因输入压力波动而引起输出压力波动的特性。输出压力波动越小，减压阀的特性越好。输出压力必须低于输入压力—定值才基本上不随输入压力变化而变化。)