40 Custom manufacturing of 3D printed objects and production of 3D printed objects, namely, 3D printing; material processing, in particular by 3D printing; rental of 3D printers; custom additive manufacturing of parts, workpieces, prototypes, models, profiles, tools and other types of three-dimensional objects from powders, wires and dispersions, especially by VAT polymerisation, material jetting, 3D printing, material extrusion, powder bed fusion including, laser sintering, laser melting, electron beam sintering, thermal sintering and electron beam melting, sheet lamination and DED (directed energy deposition); processing of materials in the nature of 3D printing and custom additive manufacturing, especially via VAT polymerisation, material jetting, 3D printing, material extrusion, powder bed fusion including, laser sintering, laser melting, electron beam sintering, thermal sintering and electron beam melting, sheet lamination and directed energy deposition (DED); 3D printing for applying decorative and protective coatings, namely, coating workpieces, manufactured parts, material webs, tools and machine parts of metal, ceramic, plastic, fibre-reinforced plastics, in particular applying layers of metallic materials, ceramic materials, plastic and composite materials of two or more thereof; custom manufacturing and 3D printing of parts, prototypes, models, profiles and tools and other types of three-dimensional objects by generative manufacturing; custom manufacturing of powders for the generative manufacturing of three-dimensional objects, in particular by laser sintering, laser melting, electron beam sintering or electron beam melting; 3D printing for the application of functional protective layers on workpieces, finished parts, material webs, tools and machine parts, including pre- and post-treatment processes * ; all the aforementioned services of this class - apart from the fields of thermal spray, mechanical cutting and/or additive and build-up manufacturing which are not subject to any restrictions - not in the following fields: welding, brazing, laser cladding, hardfacing, welding equipment, welding consumables, welding apparel, welding accessories, welding flux, cutting products *