... HK-J2.5H membrane is a volumetric gas meter diaphragm gas meter.It has a beautiful shape, ... 5H household gas meter is the ideal phenotype, mainly for gas, natural gas, liquefied petroleum gas and other gas volume ... dusted, which insures nice appearance, moisture-proof, gas corrosion-resistant and high impact-resistant.3) ... , Remote control and Prepaid gas meter. G1.6, G2.5 G 4.0, We can offer! We ...