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    Established with 10 million capital in 2015, Xi'an YUNYI Technology Instrument Co., Ltd. is a professional designer and manufacturer that engaged in the fields of pressure measurement instruments. We specializing in developing high precision pressure transmitter, pressure gauges, pressure calibration pump and dead weight tester,level transmitter, flow meter etc., widely used in chemical, petroleum, paper, electricity, city gas, environmental protection, water treatment and other fields.