A. Comifo Hydraulic Elbow Maker also called round duct elbow maker, elbow machine, elbow making machine

B. COMIFO elbow maker is the special equipment for both connecting lock andseaming when processing on metal plate round pipe and round elbow. By adjusting the position of pointer on the hand wheel, two locks
Will be formed separately at the mouth of the round pipe, then connect the mouth of the pipe for two locks on the other set of the roller to form an elbow.