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    Hot sale ? 75 diamond bit, three wing concave PDC composite bit, quality assurance.
    share  | 19-06-14release views ID:95055
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Hot sale ? 75 diamond bit, three wing concave PDC composite bit, quality assurance.
  • Address:沧州市
    • Q Q:2121084243@qq.comQQ online
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热销Φ75金刚石钻头三翼内凹PDC复合片钻头,质量保证。

牙轮切削结构是一个牙轮钻头的最主要的特点,经过不断的科学研究,现在又许多种不同的牙轮构造形状,常见的有勺形、尖卵形、圆锥形、楔形、边楔形、平头形、锥勺形、偏顶勺形。
(2)牙轮上的牙齿一般分两种模式:镶齿、钢齿。现在,多用硬质合金齿,它的硬度和耐磨性能都比钢齿高,当然价格也要贵一些。


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