metalworking services, namely, metal plating, metal cladding, metal surface treating, namely, metal fusing and bonding, and treatment of metallic materials; ceramic processing, namely, ceramic surface bonding, ceramic cladding, and treatment of ceramic materials; [ custom fabrication processing of artificial limbs or artificial teeth; ] rental of metal treating machines and tools, and providing material treatment information

Metal working machines, namely, electric discharge machines for use in making a metallic or ceramic layer on the surface of metallic products or metallic parts of products in the field of vehicles and industrial machines