Hangzhou Zhongling Advertising Material Co. Ltd. is specialized in advertising machines and materials with a perfect system of designing, innovating, developing and producing for a series of self-innovated advertising machines such as the unique Continuous HF Welder, Banner Slitter, Ink Vacuum Cleaner, Hot Air Welder, Auto-Grommet Machine, Auto punching & grommet machine, 3D letter System, and so on.