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The recovery technique of cobalt in waste diamond cutter is introduced.
介绍利用废金刚石中的钴生产七水硫酸钴的方法。
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After photo one I polish each hook by diamond milling cutter.
照片1是我用金刚石锉刀磨光后的每一个挂钩。
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After photo one I polish each hook by diamond milling cutter.
照片1是我用金刚石锉刀磨光后的每一个挂钩。
youdao