Minxin Changhui Investment Co., Ltd. is a foreign-invested advanced technology enterprise under Hong Kong Minxin Group Co., Ltd., specializing in the research and development, production and manufacturing of intelligent digital instruments and industrial automatic control systems. The company has three enterprises in mainland China: Fuzhou Changhui Automation System Co., Ltd., Fuzhou Changhui Automation Instrument Co., Ltd., and Tianjin Changhui Instrument Co., Ltd. We have formed a strong professional product production capacity, and currently produce and sell more than 300 industrial automation control products in the 15th series. Over the years, the production and sales of instruments and meters have reached more than 230000 units per year. We have established a huge service network integrating sales and technical services in China, becoming one of the largest intelligent instrument design and manufacturing bases in the country. Fuzhou Changhui Automation System Co., Ltd. is located in Jinshan Industrial Zone, Fuzhou, on the beautiful banks of the Minjiang River. It has a research and development center and production workshop of 10000 square meters, and produces more than 150000 various instruments annually. It is one of the largest intelligent secondary instrument production bases in China. The company has a first-class domestic instrument and meter technology research and development center composed of overseas students, equipped with advanced large-scale testing and calibration equipment laboratories.