7 Mixing machines and machine tools, machines, plants and process equipment for the production and mixing of concrete, vibration equipment and machines, including motor vibrators as well as mechanical and electromagnetic vibrators for industrial use and control devices therefor, dosing machines and feeders (machine parts), concrete conveyors, engines (but not for vehicles), couplings and drive belts (except for vehicles) and parts and accessories (not included in other classes) for all the aforesaid goods.