Xi'an Yunyi Instrument Co., Ltd. is a professional manufacturer that engaged in the fields of pressure measurement instrument.
We specializing in developing high precision pressure transmitter,pressure gauges,pressure calibrator , deadweight tester and level measurent..
And we also develop valves,flow meter,temperature transmitter, densitometer etc. They are widely used in chemical, petroleum, paper, electricity, city gas, environmental protection, water treatment and other fields.