The products of Bi-stable pulse valve� Thermal reed Switch and LED floodlight for refrigerator were all developed firstly by kangyuan in China. After a market extend, all the products have became the customer�s favorites . Company were established in ***** same year, the FDF series pulse valve acquired the customer�s certificates� In 2001�The Thermal reed Switch for refrigerators were researched and developed � In 2002� The Bi-stable pulse valve were firstly researched and developed in china� In 2004�The LED lamp for refrigerator were researched and developed, and Kangyuan have became the first corporation that produce LED for refrigerator cosmically.