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how to process dolomite computer pins

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how to process dolomite computer pins

Mar 11, 2017 Dip 1 kg connector pins in five litter HCl (hydrochloric acid or muriatic acid). Then add 1-liter water. Approximately 1 to 1.5 L nitric acid will use for I kg gold plated connector pins. But add nitric acid 200 ml every time. When reaction will end then again add …

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