... service life,is the current international advanced one gas meter. Mainly for gas, natural gas, liquefied petroleum ... large capacity of 1.2dm3 cyclic volume/flow;2) Inside/outside of meter case is electro dusted, which insures ... technology Co.,Ltd is the only commercial gas meter supplier in Shanghai Expo 2010, we can provide ... warm reception. ... Rotary mechanical type gas flow meter (G1.6, G2.5, G4)