معالجة عملات

coin processing

This is one of the modern studies for purifying the surface of coins from impurities without affecting the coin's intrinsic value. It is a scientific study entirely different from cleaning and polishing processes, which damage the coin's surface and diminish its value. The presentation outlines the most important stages of the treatment process: 1. The original coin; 2. Degreasing and removing dirt; 3. Surface purification; and so on.