Equipment used: Spot welder, manual punches, circle shear, hand roller, hand brake, folder, crimping machine, beading machine, turning machine, wiring machine, swaging machine, drill press, rivet gun, soldering equipment, ladders, etc. Makes flat sheet metal layouts from blueprint of finished parts, such as sheet metal "square-to-round" transitions, offsets, flashing, tapered elbows, transitional elbows, "Y" branches and compound fittings.