The process of polishing the final specimen. To eliminate scratches caused by the procedure. Polishing with sandpaper to disappear. And a smooth, glossy surface polishing done using a polishing cloth (Polishing cloth) with abrasives, abrasive (Polishing abrasive) by powder commonly used. Oxide powder (Oxide polishing, OP) include aluminum oxide, Al2O3 and abrasive powder Diamond (Diamond polishing, DP.
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