7 cylinders, cylinder heads and cylinder liners for internal combustion engines, sliding surface bearings for industrial machines and non-land vehicles, cast parts made of base metals and alloys thereof as pressure diecastings; namely, cylinders, cylinder heads and cylinder liners, cast parts made of base metals and alloys thereof as low-pressure diecastings; namely, cylinders, cylinder heads and cylinder liners for motors, cast parts made of base metals and alloys thereof as composite castings for motors; namely, cylinders, cylinder heads and cylinder liners, change-speed transmissions with linear guides for industrial machines and non-land vehicles