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medium gold mine rotary kiln in Fier Albania Europe

mediumcoal ball mill in Constanţa RomaniaEuropeChromium alloy is the main composition of casting steel ball with diameter of 6 mm to 140 mm According to different chromium content the grinding ball can be divided into three kinds namely lowmediumand high chromium balls The hardness of relevant balls areHRC≥45 HRC≥50andHRC ...

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