pvc flexible duct-100mm insulated flexible ducting We are honored to mention that we have established our brand - Xuanyuan. Our ultimate goal is to make our brand rank top in the global market. To achieve this goal, we spare no efforts to improve product quality and upgrade service items, so that we may be on the top of the referral list by cause of the word-of-mouth.
Xuanyuan pvc flexible duct-100mm insulated flexible ducting Shanghai Xuanyuan Air Conditioning Equipment Co., Ltd. clearly knows that inspection is a key element of quality control in the manufacturing of pvc flexible duct-100mm insulated flexible ducting. We verify product quality on-site at different stages of the production process and prior to its dispatch. With the use of inspection checklists, we standardize the quality control process and the quality problems can be delivered to each production department.12 inch hvac duct,hvac rectangular duct,hvac pipe.