There are numerous advantages to shot blasting aluminum castings, and this design is economic as a potential investment proposition. First, this process effectively removes the scale, sand and other impurities from the casting surface, giving a pure uniform base for painting,coating or welding. Second, by improving the mechanical performance of the aluminum, it will increase fatigue strength and corrosion resistance. Third, the process also gives the surface of aluminum a smooth and beautiful finish—adding both look and feel to the product. Besides, it is an eco-friendly process that uses no hazardous chemicals and has a minimal environmental footprint. According to another material, steel shot (and not just aluminum), shot blasting itself increases cost-efficiency over every step in processing metals from its crop on the machine. Far from being expensive to carry out like so many other surface treatments or finishing technologies in general factory production. Also for manufacturers who work 24-hour shifts every Monday through Saturday anyhow; because 1) their costs of finishing will be less than even those businesses not doing ongoing "discussions"; 2). Ergonium has the best quality/price in salt water condition; and 3). it uses very few *fluids ( The only fluid Ergonium uses are water and oil). In addition, because its efficiency, shot blasting can greatly reduce production times and costs, making it an attractive option for manufacturers both economically and in practice.