Flow Meter, Pressure Transmitter, Pressure Gauge manufacturer / supplier in China, offering Vortex Flow Meter Air Flowmeter Vortex Gas Flow Meter Liquid Vortex Flowmeter, Pulse Output 220V 40~350c LCD Display Vortex Type Flow Meter 2" 3" Differential Pressure Steam Oxygen Flowmeter, High-Temperature Operational Vortex Flow Meter (6") for Oxygen, Biogas & CO2 Flow and so on.