4 inch hvac duct 4 inch hvac duct is one of the main products of our company. Related product details can be viewed at Xuanyuan Air Conditioning Equipment. Free samples are sent or tailored according to customers' needs. We strive to be the best regarding quality and service.
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Xuanyuan 4 inch hvac duct Shanghai Xuanyuan Air Conditioning Equipment Co., Ltd. puts great efforts into maintaining the highest level of material quality and product structure from the initial phase of 4 inch hvac duct development. Although we don’t always seek certifications, many of the materials we use for this product are highly-certified. As a result of the effort, it meets the strictest performance criteria.insulated flex,160mm flexible ducting,flexible duct for bathroom fan.