Machine tools, namely, chasers, gear cutters, clamps for use in precision clamping of work pieces; motors and engines, except for land vehicles; electric motors, not for land vehicles; machine coupling and transmission components, except for land vehicles; air filters for motors and engine; filter presses for chemical processing; oil separators; oil filters for engines and machines; gas filters and oil filters for engines and machines; filtering machines for chemical processing; parts and fit...