... 1979,at the begining our company named as Qinfeng Flow meter.we are the professional manufacturer of flowmeters,thermometers,liquid level ... products are contain of LZB/LZJ(-F)glass tube flow meter,LZB-W(B)micro type glass tube flow meters,G ... /LUCB vortex street flow transmitter,LDG electromagnetic flowmeters,LWGY/LWY turbine flowmeters,WSS series bimetallic thermometer and so on about five ...