Polycrystalline diamond compact core bit的意思|示意
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聚晶金刚石致密取心钻头
Polycrystalline diamond compact core bit的网络常见释义
金刚石复合片取心钻头 sintered diamond compact 烧结金刚石复合片 Polycrystalline diamond compact core bit 金刚石复合片取心钻头 Polycrystalline diamond compact non-core bit 金刚石复合片不取心钻头 ..