Gear Flowmeter, Turbine Flowmeter, Digital Flowmeter, Oil Flowmeter used widely in oil, food industry, Size: 3/4"-3" Flowmeter, Gear Flowmeter, ... Turbine Flowmeter, Oil Flowmeter. 1. OGM Gear Flowmeter. OGM-25/40/50 aluminum ... in the industrial field such as petroleum exploitation, oil refinery, chemical and oil storage.ModeGM-15GM-20GM-25GM-40GM-50GM-80GM- ...