Hangzhou Zhenhua Instrument Co,, LTD., formerly known as Hang-zhou Zhenhua Factory, which was founded in January 1985 and   renamed as Hangzhou Zhenhua Instrument Co., LTD in 2001. We  have been a professional manufacturer of electromagnetic flow   meters in China for 35 years, specializing in the production and      sales of various types of flow meters. (JJG 1033- -2007)   Hangzhou ZhenHua Sale Instrument Co.,Ltd, which is the sales   subsidiary of Hangzhou ZhenHua Instrument Co.,Ltd. We sell and  service of various types of flow meters such as electromagnetic  flow meter, vortex flow meter, metal tube rotameter and ultrasonic  flow meter.