Jiangyin Jack-aiva Trade Co. Ltd., JACK-AIVA was new formed and based on our manufacturer with its own facilities for production of special sheet metal working machines for the duct work and the heating, ventilation and air conditioning (HVAC) industry. Our machinery covering a full range of HVAC Duct Machines: Spiral round duct forming machine, elbow making machine, Flexible Tubeformers, Various Profile roll forming equipment, and other relative machines etc. We do our best to find the optimal solutions for your company and the right answer for all questions off. These are all according to the help of our skillful engineers have more than ten years in this field. Best quality, competitive prices and satisfied after-sale services are our standing guarantor of success. Our company is located in Jiangyin city and Shanghai city with superior geographic position and convenient transportation. We are ready to establish a long good business relationship with your esteemed company as a supplier, a partner and a friend. Warmly welcome you from worldwide.