供应RG/2MB P1MAX 5bar P2: 1.0-50kpa DN32意大利MADAS马达斯燃气超压安全切断调压器/减压阀MADAS减压阀燃气稳压阀型号:RG/2MB P1MAX 5bar P2: 1.0-50kpa DN40;MADAS减压阀型号:RG/2MB P1MAX 5bar P2: 1.0-50kpa DN50; MADAS减压阀型号:RG/2MCS P1MAX 5bar P2: 1.0-50kpa DN32;MADAS减压阀型号:RG/2MCS P1MAX 5bar P2: 1.0-50kpa DN32; MADAS减压阀型号:RG/2MCS P1MAX 5bar P2: 1.0-50kpa DN32;MADAS减压阀型号:RG/2MCS P1MAX 5bar P2: 1.0-50kpa DN32;