Founded in 2007, Shanghai Xuanyuan Air-Conditioning Equipment Co., Ltd. is the leading manufacturer of the flexible duct products in China. We have a factories located in Shanghai province which cover a total area of 6000 square meters of land. In the year 2014, we have sold 60 million meters duct.Qianjing manufacture Aluminum Flexible Duct, Combi Aluminum Flexible Duct, Insualted Flexible Duct, Kitchen Ventilation Flexible Ducting, Hightemperature Aluminum Ventilation Duct, Semi-rigid Aluminum Duct and relative accessories.Our cooperator includes Shanghai Disney Land (Exclusive supplier), CSCEC, CARREFOUR, etc.The company engaged in R&D of our products, which all comply with the international ISO9001-2008 standards. Aiming at providing the customers with high-quality and high-performance products, the company is always endeavoring to do the best.