precipitation, the company has developed into a high-tech enterprise integrating the R & D, manufacturing, sales and service of temperature control, smart home and HVAC products. The company is committed to providing for global users the high-precision, energy-saving & environmental protection products, and temperature control solutions. Trv series products produced by the company have passed the European EN215 certified on 2019, and has been sold in more than 30 countries and regions, including Germany, Britain, France, Poland, Sweden, Greece, Spain, Russia and Italy.