STAG300,CNG/LPG injection system kits(Poland)(cng fuel auto,cng regulator,cng mixer,ECU,switch) STAG300,CNG/LPG injection system kits ... kits(AC300)1.It is one of the main components for the burning gas system,through collecting the fuel signal of ... as EU2, EU3, EU4 and over. (Poland)(cng fuel auto,cng regulator,cng mixer,ECU,switch)STAG300,CNG/LPG injection system kits