40 Service for parts finishes for third parties, especially shotblasting, sand blasting, selective lacquering, cleaning and degreasing, stripping, acidification, coatings, removal of brittleness, increasing hardness, passivation, demetallizations, electrolytic and anodized coatings, namely, treatment of materials in the nature of metal and stone; surface finishing by shot blasting, namely, sandblasting; stripping, namely, abrasive blasting services; electrophoretic coatings services; application of wear-resistant coatings by means of electrolytic processes, namely, electrophoretic coating services; hot galvanization, namely, applying decorative and protective coatings to metal by means of galvanization; cleaning by sandblasting; mineral and metal heat treatment, namely, treatment of materials by means of barrel system, namely, using barrels to soak items to apply treatment; heat treatment of metallic surfaces, namely, treatment of materials by means of barrel system, namely, using barrels to soak items to apply treatment; heat treatment and coating of steel; disposal of specific chemical products in chemical process fluids, namely, recycling of chemicals; disposal of solid waste, namely, recycling of waste and trash