7 Industrial and power operated machines, namely, electric pumps, vacuum pumps, submersible pumps, [ controlled volume pumps, rotary pumps, ] suction pumps, turbo molecular pumps, [ gear pumps, screw pumps, regenerative pumps; high pressure cleaning machines;] pneumatic and hydraulic machines, namely, [ turbines,] fans, [ blowers, compressors, disintegrators, gas expanders, wind tunnels, aerators; starters for motors and engines;] electric motors for machines; [ electric generators; composting and fermentation machines for use in the disposal of solid and liquid waste; pulpers; conveyors; dust collectors; dewatering pumps; sedimentation and separation equipment, namely, attrition machines, centrifuges, classifiers, heavy media separators; fountain solution circulation and cooling machines; machines for refining and manufacturing sugar and salt; silencers for engines; transmissions for machine operation; vacuum cleaners; thrusters for machinery; couplings for machines; valves for pumps; air filters for mechanical purposes; filters for motors and gas engines; solid separator device, namely, a separator body, an impeller and motor used to separate sand, silt and other solid particles from the water; metal working machines for pressing, forming and cuffing metal;] polishing machines, namely, [ polishers, faceters, laps, grinders and tumblers; ] [ machines for manufacturing and cleaning semiconductors and silicon wafers;] machines and power operated tools for use in soldering and plating; machines for manufacturing thin film and liquid crystal displays; [ and structural and replacement for all of the aforesaid goods; ] machines used for processing wafers used for manufacturing semi-conductors, namely, compression molding machines, polishing machines, grinding machines