7 Metalworking machines, namely, machining centers, planing machines, shaping machines, perforating machines, grinding machines, and slotting machines, and tools, namely, milling tools, boring tools, turning tools, drilling tools; lathes, computer-controlled lathes, namely, turning centers, lathes for metalworking, drilling machines and metalworking machine tools; secondary metal forming machines and apparatus, namely, mechanical presses, hydraulic presses, oil hydraulic presses and die cast machines; safety devices comprising mechanical and non-mechanical valves, exclusively for use with metalworking machines and apparatus, namely, mechanical presses, hydraulic presses, oil hydraulic presses and die cast machines; secondary metal forming machines and apparatus, namely, mechanical presses and oil hydraulic presses; safety devices comprising mechanical and non-mechanical valves, exclusively for use with secondary metal forming machines and apparatus, namely, mechanical presses, hydraulic presses, oil hydraulic presses and die cast machines