7 Pumps as parts of machines, motors and engines; single pump parts, namely, impellers, casings, housings, shaft bearings, seals for industrial pump applications; slide bearings as machine parts; machine wheels in the nature of machine parts; pistons as machine parts, namely, pistons for engines; piston sleeves in the nature of machine parts, namely, piston rings; friction bodies in the nature of machine parts, namely, anti-friction bearings for machines, anti-friction liners as wear protection, anti-friction pads for machines, friction clutches being anti-friction bearings for machines, friction discs being anti-friction bearings for machines; anti-friction bearings for machines; machine parts, namely, anti-friction liners as wear protection; parts for wind sifters, namely, separator wheels in the nature of power-operated abrasive wheels; material production and processing machines in the nature of machines tools, namely, machining tools, cutting tools, drills, drilling inserts for machines, all for industrial applications' for machining of metal, ceramics, composite materials, stones, concrete; drilling heads in the nature of bits for power drills, milling cutters, milling adapters in the nature of cutters, electric knives for milling machines; attachments in the nature of grinding tools and structural parts for grinding machines, power-operated grinding wheels; electric knives in the nature of machine parts; saws in the nature of saw machines; fans being parts of machines, namely, fans for machine engines; parts of fans in the nature of machine parts, namely, centrifugal fan condensers, axial fan condensers; solid, fluid and gas filters in the nature of parts of machines or motors, all being parts of manufacturing machines; bearings in the nature of machine parts; pulverisers in the nature of machines for industrial and commercial applications; spray nozzles, namely, machine parts in the nature of parts of power-operated sprayers; nozzle sprayers in the nature of power-operated sprayers; milling machines and parts of milling machines in the nature of drill heads, span suction hoods