• Treatment of materials
    • Recycling of waste and trash
    • Air purification and treatment of water
    • Printing services
    • Food and drink preservation
    • Services rendered by the mechanical or chemical processing, transformation or production of objects or inorganic or organic substances, including custom manufacturing services
    • Transformation of an object or substance and any process involving a change in its essential properties (for example, dyeing a garment) or repair or maintenance work (for example, chromium plating of motor vehicle bumpers)
    • Services of material treatment which may be present during the production of any substance or object other than a building, for example, services which involve cutting, shaping, polishing by abrasion or metal coating
    • Joining of materials, for example, soldering or welding
    • Processing and treatment of foodstuffs, for example, fruit crushing, flour milling, food and drink preservation, food smoking, freezing of foods
    • Custom manufacturing of goods to the order and specification of others, for example, custom manufacturing of automobiles
    • Services of a dental technician
    Quilting, embroidering, custom tailoring, textile dyeing, applying finishes to textiles