pvc duct Having developed for years, we have established a full set of service system. At Xuanyuan Air Conditioning Equipment, we guarantee the products to come with varied styles and specifications, the goods to be delivered on time, and professional after-sales service to be offered.
Xuanyuan pvc duct Shanghai Xuanyuan Air Conditioning Equipment Co., Ltd. strictly selects the raw materials of pvc duct. We constantly check and screen all incoming raw materials by implementing an Incoming Quality Control - IQC. We take varies measurements to check against collected data. Once failed, we will send the defective or substandard raw materials back to suppliers.4 insulated flexible duct,flex duct tee,150mm insulated flexible ducting.