7 Rotary pumps, suction pumps, gear pumps, screw pumps, regenerative pumps, controlled volute pumps; high pressure cleaning machines; pneumatic and hydraulic machines, namely, turbines other than for land vehicles, disintegrators for chemical processing, aerators; starters for motors and engines; electric generators; composting and fermentation machines for use in the disposal of solid and liquid waste; dewatering pumps; sedimentation and separation equipment, namely, centrifuges, classifiers in the nature of sorting machines for chemical processing, heavy media separators; silencers for engines; transmission for machine operation; vacuum cleaners; coupling 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; machines for manufacturing and cleaning semiconductors and silicon wafers; washing machines for industrial parts; sewage and refuse compressors, crushers and disposal machines; exhaust gas treating equipment, namely, exhaust gas treatment systems for diesel engines; gasifiers; plasma etching machines; lithography machines and dicing machines for manufacturing semiconductors; steam engine boilers; sputtering machines in the nature of machines and apparatus for manufacturing semi-conductors; and structural and replacement parts for all of the aforesaid goods