E+C

chemical flux compositions for use in welding, brazing, and soldering operations, either to be applied to metal surfaces or to welding rods

metal alloys in the form of powder and solids for use in welding, brazing, and soldering operations

apparatus for use in welding, brazing, and soldering operations; namely, incandescent welders, acetylene torches, welding heads, and thermal spray diffusers for use therewith

electric apparatus used in welding, soldering, and brazing processes; namely, electric welding and arc welding apparatus; safety helmets for use in welding, brazing, and soldering operations

maintenance, renovation, and/or repair services for metallic and/or synthetic surfaces of machines and appliances including turbine blades, boring tools, cutters, and other parts and fittings of such machines or appliances

welding and plating services; service of applying protective coatings to metallic surfaces; metal shaping services

instructional and teaching services, all relating to fault/treatment diagnosis, maintenance, renovation and/or repair of installations, machines, or appliances having to do with metal plating, coating, shaping, and welding and of parts and fittings of intallations, machines, or appliances having to do with metal plating, coating, shaping, and welding