Hongkong Changhui Automation System Co. Ltd.   

instrument general agent China Chang Hui Department of Hongkong Changhui Automation System Co. Ltd. established in Zhengzhou, responsible for the SWP series intelligent digital control instrument, intelligent digital display electric meter, color paperless recorder, monochrome paperless recorder, intelligent vortex flowmeter, electromagnetic flowmeter, flow totalizer, RF admittance an instrument, multi-channel patrol inspection and control instrument, pressure transmitter, integrated temperature transmitter, compensation wire, electric actuator, electric control valve, electric control valve, electric single, double seat control valve, WZ series thermal resistance, thermocouple series series bimetallic thermometer, pressure gauge and other products, sales promotion consulting services in china. And external to undertake intelligent instrumentation, automation control engineering design, installation, complete sets, commissioning and other business.