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[http://www.china-casting-supplier.com die casting]shot blasting the surface of the product color, the use of shot blasting. If you are using stainless steel balls, plus a small amount of aluminum pill, throw after the bright white surface of the product inside. Die castings surface often moldy, seriously affect the appearance of the casting quality, mold release agents cause. At present, the manufacturers of the market, large and small production release agent, a large number, many of which plant quality problems, the most important of die castings will have a corrosive effect.