40 Custom fabrication services, namely, treatment and processing of metals, wood, glass, plastics, composites, fibers, foam, stone, and ceramics; custom fabrication of industrial equipment, mechanical equipment, agricultural equipment, and containers; custom fabrication and demolition of industrial and mechanical equipment, tools, and machines; welding; welding services; welding services for others; custom cutting services of metals, wood, glass, plastics, composites, fibers, foam, stone, and ceramics; machine shop services, namely, machining parts for others; metal processing services, namely, punching, cutting, shaping of metal per customer specification; demolition services, not buildings; surface treatment services, namely, resurfacing, sanding, and polishing surfaces for others; coating services, namely, powder coating for others; treatment of materials by laser beam, namely, laser jet cutting services for wood, metal, plastic, glass, and ceramic; custom manufacturing, of conveyors and bearing guards