... in 1979,at the begining our company named as Qinfeng Flow meter.we are the professional manufacturer of flowmeters,thermometers,liquid ... glass tube flow meter,LZB-W(B)micro type glass tube flow meters,G.R.F10/20/30 glass tube flow meters,LZZ/LZD(-F)metal tube flow meters ... ,organism panel type purified flow meters,UHC magnetic flap ...