40 Precision machine shop services and custom metal fabricating and finishing with various grades of stainless steel, carbon steel, aluminum and exotic metals and plastics; Machine shop services, namely, machining parts for others; Metal, steel, and aluminum fabrication and finishing services for others; Custom fabrication of industrial machinery and equipment; Custom fabrication of pumps, gearboxes, mining machines, mining apparatus, and valves; Custom fabrication of chutes, discharges, hoppers, ducts, heat exchangers, industrial dryers, trommels, industrial piping, structural equipment, and bins; Grinding; Metallizing; Welding