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Treatment and coating of metal surfaces; Metal coating; Application of wear-resistant coatings on metals and plastics; Metal treatment; Heat treatment of metal surfaces; Processing of metal surfaces by abrasive polishing; Surface finishing of metal articles; Application of coatings using vacuum deposition techniques; Application of coatings using physical vapor deposition techniques; Application of coatings using chemical vapor deposition techniques; Application of coatings using thermal plasma spraying techniques; Application of protective surface coatings to machines and tools; Application of wear resistant coatings to engineering components; Chemical vapour deposition; Treatment of metal parts to prevent corrosion using hot-dip galvanizing and powder coating processes; Treatment of metal parts to prevent corrosion; Application of wear resistant coatings by electrolytic processes; Application of wear resistant coatings by autocatalytic processes; Metal plating; Galvanising of metal; Hard nickel plating of metal surfaces; Hard chromium plating of metal surfaces; Treatment of metals; Electroplating; Galvanization; Electro-plating; Galvanization services; Metal plating and laminating; Chromium plating of metal articles