Polishing media, Steel Satellite Polishing media,Steel Ball:Different size are available on ... , vibratory finishing machines for various metal finishing applications, including polishing of gold and silver jewelry, zinc diecastings, cast aluminum, hinges, ... cages, pistons, sintered bushes, watch parts, zip sliders;burnishing of coin blanks and stampings,jewellery, cutlery, and copper pipe fittings ...