... be influenced by the change of fluid density,viscosity,temperature,pressure and conductivity;2.The inside of measuring tube ... 1979,at the begining our company named as Qinfeng Flow meter.we are the professional manufacturer of flowmeters,thermometers,liquid ... ,UHC magnetic flap liquid level meters,LUGB/LUCB vortex street flow transmitter,LDG electromagnetic flowmeters,LWGY/LWY turbine flowmeters,WSS ...