23 PAPER CONVERTING MACHINES FOR CONVERTING PAPER IN ROLLS OR SHEETS TO FINISHED PRODUCTS BY CUTTING, EMBOSSING, ROLLING, CREASING, PIERCING, FOLDING, GLUING AND SEWING; METAL PIERCING AND NOTCHING MACHINES; FORMING, CUTTING AND INSPECTION MACHINES FOR USE IN MANUFACTURING ELECTRIC STRIP AND ROD HEATERS AND MACHINES FOR FEEDING, POSITIONING AND TRANSFERRING RAW MATERIALS AND PARTS BETWEEN FABRICATING AND MANUFACTURING OPERATIONS