7 Rotor shafts being transmission shafts other than for land vehicles, partly made of metal or metal alloy, in particular for use in assembled units; brakes for machines; machines, namely, metal working and metal processing being metal working machines, machines for agriculture being cultipackers, drying machines, seed planters, mining machines being borers, drills, as well as concrete construction machines; engine camshaft parts and engine camshaft modules made therefrom, engine camshaft sprockets, connecting rods for machines, in particular of steel or ceramic, one-piece and composite connecting rods for machines, composite and assembled crankshafts and structural components therefor for variable compression; engines and motors except for land vehicles, and engine and motor structural parts therefor, in particular pistons, pumps and hybrid drives; machine parts, namely, joints for connecting sliding strips, plates and guides, and shock absorbers for machines; transmissions for machines, and structural parts thereof, in particular transmission shafts and gears other than for land vehicles, transmission gearing and reduction gearing being parts of machines, shifting claw transmissions for machines, differential transmission gears, hybrid gear drives for machines, lightweight gears for machines, air-conditioning compressors; machine coupling and transmission components, except for land vehicles; agricultural implements other than hand operated, namely, cultipackers, drying machines, seed planters; industrial robots; Machine transmission systems, comprised of transmissions for machines, and electronic control and regulating devices therefor for agriculture as well as of construction machines, machine tools and motors and engines; structural parts and components of the aforementioned goods; crankshafts, composite and assembled crankshafts, pistons, pumps for machines, air compressors and connecting rods for machines, motors and engines, all of the foregoing for variable compression