7 Metalworking machines and tools, namely, turning centers, machining centers, lathes for metalworking, numerically controlled lathes for metalworking, milling machines for metalworking, grinding machines for metalworking; lumbering, woodworking, or veneer or plywood making machines, namely, wood lathes, wood milling machines; plastic processing machines, namely, injection machines, plastic-cutting machines; stone working machines, namely, milling machines for the treatment of stones, grinding machines for the treatment of stones; Ceramic working machines, namely, milling machines for the treatment of ceramic, grinding machines for the treatment of ceramic; machines and apparatus for manufacturing rubber goods, namely, rubber forming machines; glass working machines, namely, milling machines for the treatment of glass, grinding machines for the treatment of glass, glass cutting machines