... gas meter. Mainly for gas, natural gas, liquefied petroleum gas and other gas volume measurement.1) Compact structure, large capacity of 1.2dm3 cyclic volume/flow ... ;2) Inside/outside of meter case is electro dusted, which insures nice appearance, moisture-proof, gas corrosion-resistant ... , we would give you a warm reception. ... Rotary mechanical type gas flow meter (G1.6, G2.5, G4)