14 inch flex duct-12 inch insulated flexible duct To make sure that Shanghai Xuanyuan Air Conditioning Equipment Co., Ltd. provides quality 14 inch flex duct-12 inch insulated flexible duct, we have effective quality management methods that fully meet regulatory requirements. We strictly follow standard operating procedures for the selection of materials to ensure the high quality of the product. Meanwhile, we effectively implement the quality control system throughout the whole production process.
Xuanyuan 14 inch flex duct-12 inch insulated flexible duct Xuanyuan products are well-known in the industry. These products enjoy a wide market recognition which is reflected by the increasing sale volume in the global market. We have never received any complaints about our products from customers. These products have attracted much attention not only from customers but also from competitors. We gain greater support from our customers, and in return, we will do our best to produce more and better best quality products.round duct insulation,insulated rigid ductwork,air duct insulation.