ductingchina.com,100mm insulated flexible ducting-round aluminum duct,During the production of 100mm insulated flexible ducting-round aluminum duct, Shanghai Xuanyuan Air Conditioning Equipment Co., Ltd. adopts a strict monitoring process to ensure the quality of raw materials. We purchase raw materials according to our own production standards. When they arrive at the factory, we take great care of processing. For instance, we ask our quality inspectors to check every batch of material and make records, ensuring that all defective materials are eliminated before mass production.
Xuanyuan provides 100mm insulated flexible ducting-round aluminum duct products that are selling well in United States, Arabic,Turkey,Japan,German,Portuguese,polish,Korean,Spanish,India,French,Italian,Russian,etc.
Xuanyuan,Our company main produces 7 inch flexible duct,rectangular flexible duct,hvac ductwork.