installing flex duct installing flex duct is promised to be high-quality. At Shanghai Xuanyuan Air Conditioning Equipment Co., Ltd., a complete set of the scientific quality management system is implemented throughout the production cycle. In the pre-production process, all materials are strictly tested in conformity with the international standards. During the production, the product has to be tested by sophisticated testing equipment. In the pre-shipment process, testings for function and performance, appearance and workmanship are conducted. All these greatly ensure that the quality of the product is always at its best.
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Xuanyuan installing flex duct installing flex duct is created as Shanghai Xuanyuan Air Conditioning Equipment Co., Ltd. focuses on constantly developing new innovative product functions. In this product, we have added as much clever solutions and functions as possible – in perfect balance with the product design. The popularity and importance of the same range of products in the market have urged us to develop this product with the best functionality and quality.flexible aluminum dryer vent pipe,3 inch aluminum flexible duct,insulated aluminum duct.