ZD VACUUM is one of the most important manufacturers of vacuum pumps & systems in China. With two ISO-9001 certificated factories located in Shanghai & Suzhou, ZD serves the customers by high quality products using the modern manufacturing and managing technologies. Products & Service: V- serial rotary vane vacuum pumps, with capacity 10-750m3/h R- serial roots pumps, with capacity 300, 500,1000, 2200, 3600 m3/h Vacuum system & engineering service. Applications: Vacuum infusion process （VIP, RTM, VIRTM）; Vacuum degassing, vacuum press, vacuum clamping & lifting, vacuum forming, vacuum drying, etc. Centralized vacuum supply system.