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Common metals and their alloys, ores; materials of metal for building and construction; buildings, transportable, of metal; non-electric cables and wires of common metal; metal hardware; metal containers for storage or transport; safes.Unprocessed and semi-processed rubber, gutta-percha, gum, asbestos, mica and substitutes for all these materials; plastics and resins in extruded form for use in manufacturing processes; packing, stopping and insulating materials; flexible pipes, tubes and hoses, not of metal.Materials, not of metal, for building and construction; rigid pipes, not of metal, for building; asphalt, pitch, tar and bitumen; buildings, transportable, not of metal; monuments, not of metal.Construction; building maintenance and repair; HVAC (heating, ventilation and air conditioning) installation, maintenance and repair; plumbing installation, maintenance and repair; drilling for the mining industry, drilling for the extraction of gas and oil.