Ningbo Aier Ventilation Equipment Co.,Ltd. is one of the manufacturers of metal stamping products in China. Our factory covers 100,000 square feet and its located in Yuyao City, east coast of China, very closed to the ports of Shanghai and Ningbo. We have 20 years experience in producing and supplying high quality metal products, by focusing on quality in every product, on-time delivery to every customer, and competitive pricing. We have more than 100 manufacturing staff and a strong engineering team, all of our products are exported to America and European markets. Our factory is specialized in supplying HVAC accessories like Iris damper, metal air valve, access door, suspension ring, corner, corner clamp, swirl diffuser, holder, regulator and etc. We pride ourselves on providing outstanding custmer service, competitive prices, priority response, and problem-solving capacibilities. Our dedication to continually improving our business and our customer relationships continues to pay off for our customers, employees and the company.