... installation, accurate measurement. JBD series of the gas meter are applicable to man-made and natural gas, LPG ... of product satisfy the “GB/T6968 -97 gas meter” requirements. The product is the ideal choice of ... the gas meter.Features:New design structure, advanced technology, convenient ... 6 - SA. JBD2. 5: SA gas flow meter is made of aluminium alloy by casting. It has ...