Asymmetical three-roller bending machine's upper roller is hand-adjusted up and down. the machine has a pre-bending function. Bending function is power driven,and the upper roller can be moved to remove the workpiece.

Comifo Duct Manufacture Machine Co.,ltd is a subsidiary of Comifo Group, the main duct production line, fire damper production line, plasma cutting machine,lock former machine, flange machine and other air duct processing equipment, the registered capital of 9 million yuan, The factory area of 140,000 square meters, has accumulated nearly 20 years of manufacturing experience, independent research and development production, with 24 national patents, product sales in 128 countries around the world.