... G1.6, G2.5 aluminium case gas meter performance can fulfill OIML R31-1995standard and ... requirement G1.6, G2.5 aluminium case gas meter is suitable for measuring the flow-rate of ... , liquefied petroleum gas, marsh gas, etc. The meter performance can fulfill OIML R31-1995standard and EN1359-1998 ... parametersG1.6, G2.5 aluminium case gas meter1. Meter body: aluminium alloy.2. For bodies with screws ...