1.Specification:JR1.6 JR2.5 2.Thread Size:30*2mm 3Table Connector:4 in charge of the child 4Table Connector Material:Copper GAS METER Structure1.Casting aluminum shell, reliable anti-reverse-rotation device, small size, light weight, high strength, corrosion resistance, high strength, corrosion resistance, high accuracy and measurement accuracy.2.Adopt flying drum counter device, intuitionistic ...