7 Machinery for working metal in coil and flat stock form, namely, rollformers, roll straighteners, presses, shears, notchers, formers, stackers, de-stackers, lifts, reels, transfer conveyors, cutoff presses, punching systems consisting of presses, wingformers, blenders, in-line welders; tooling in the nature of dies for rollformers, roll straighteners, presses, shares, notchers, formers, stackers, de-stackers, lifts, reels, transfer conveyors, cutoff presses, punching systems, wingformers, blenders, in-line welders