意大利MADAS马达斯FRG/2MC稳压阀天然气/液化石油气减压阀，mod:RG/2mc DN25 P1 max:1bar稳压阀主要型号RG/2MC RC03DN20稳压阀mod:RG/2mc DN40 P1 max:1bar；RG/2MC RC04 DN25燃气稳压阀； RG/2MC RC05 DN32燃气减压阀mod:RG/2mc DN50 P1 max:1bar；燃气稳压阀RG/2MC RC
