Huicong heating, ventilation and comfortable home industry has been successfully operated for 18 years, with more than 10000 cooperative enterprises and more than 12000 business and user resources Wanjia, providing information, brand communication, sales leads, procurement, business promotion, marketing upgrading and other services for the upstream and downstream industry chain of HVAC, is a professional comprehensive service platform for China's HVAC and comfortable home industry, and is committed to providing the best business services for manufacturers in the HVAC and comfortable home industry!