Treatment, surface treatment and coating treatment of parts and materials, whether metallic, of ferrous alloys or non-metallic, namely, electrochemical treatment, salt bath treatment, nitriding treatment, oxidizing treatment, thermochemical treatment, thermochemical diffusion treatment, heat treatment, diffusion heat treatment, electrolytic or chemical surface conversion treatment, catalytic treatment, passivation treatment, surface impregnation treatment with organic compounds, metal diffusion treatment, coating treatment by physical or chemical vapor deposition, namely, on metals and their alloys, polymers and composites, glass, ceramics, and on goods of those materials, vacuum metallization, electrolytic coating or plating treatment, ferrous alloy coating or plating treatment, mechanical coating or plating, nickel plating, chromium plating, zinc plating, tin plating, silver plating, gold plating, tin/lead alloy plating, deposition of metals and tin/lead alloys, copper/tin alloy coating treatment, deposition of chromium/nitride coatings, nickel/phosphorus alloy based coating treatment, application of organic, organo-metallic, metal or metal alloy coatings, of solid lubricating films, of polymers, metallization by cathode sputtering, metallization by thermal spraying, application of metallic, ceramic or cermet coatings by thermal plasma spraying, treatment with oils, hardening, tempering, quenching; information relating to treatment, surface treatment and coating of parts and materials