CO2 filling pump GTM-C For filling MT2-MT7 portable Filling speed:1-6Kg/min Filling ... CE, UL, SGS, ISO CO2 filling pump for fire extinguisher GTM-C 1. CO2 filling pump for fire extinguisher GTM-C is a new ... , SGS, ISO, FDADimensions: 2600*800*900mm GTM-C CO2 filling pump for fire extinguisher