We use drawing, cropping and round-off etc technologies. The appearance is shine, rustless and spherical (cut wire, cylinder). It is widely used for peening treatment in copper, aluminum, zinc and stainless steel. After treatment, the workpieces have matt effect and rusty advantages. There is no need to carry out derusting treatment and the wear-resistance is 3-5 times as casting steel shot. This can lower the production costs
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