Manual goffering elbow machine

MEL - Manual goffering machine designed to produce square and round elbows from the seamless or welded ducts.
Standard machine size range (standard set of dies): rectangle 2x3 3x4, round 2 in. 3 in. 
Materials: machine operates with pipes made of aluminum .019”
Final product widely used in downspout and HVAC systems.
Productive capacity depends on size of the pipe and varies in range of 2 to 6 pc per minute.