MACHINERY FOR WORKING METAL SHEET, STRIP, TUBE, ROD AND WIRE WHICH PERFORMS ONE OR MORE OF THE OPERATION OF ROLLING, MILLING, SLITTING, STRAIGHTENING, EDGING, COILING, DECOILING, BLANKING, FORMING, BENDING, COMBINED FORMING AND WELDING, COMBINED BENDING AND WELDING, AND CUTTING INTO LENGTHS; MACHINERY FOR WORKING PRODUCTS OF ABOVE-NAMELY, SPRING LOOPERS AND GRINDERS; PERMANENT MOLDS FOR NON-FERROUS METAL-NAMELY, AIR AND WATER COOLED MOLDS, ROLLING MILLS, SLAB MILLING MACHINES, STRAIGHTENERS, STRIP COILERS, STRIP DECOILERS, FOURSLIDE MACHINES, SPRING COILERS, SPRING WINDERS, SPRING LOOPERS AND SPRING GRINDERS AND PARTS AND ATTACHMENTS FOR THE FOREGOING