Metal working machines and machine tools, namely, vertical machining centers, horizontal machining centers, grinding centers, CNC drilling centers, lathes, CNC lathes, high-speed precision lathes, turning centers; transfer apparatus, namely, loader, gantry loader, conveyer, cranes, and robots; chemical machines and apparatus, namely, filters for machines for use industrial robots in connection with control and repair of metal working machines; machine elements, namely, ball screws, couplings ...