一般市贩之 阶梯钻 ( Step Drill ) 是由二个不同直径大小的钻头所组成。当 阶梯钻 钻削 复合材料时,小端直径钻头造成复合材料出口部份产 生的脱层缺陷,会被随后...
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step drill with four edges 四刃阶梯钻
drilling with step drill [机] 阶梯钻削
step-drill 阶梯钻头
stair-step drill reamer 阶梯式钻铰刀
two-step taper shank drill 两级锥柄钻头
step feed drill attachment 分级进给钻削附件
drilling with step core drill [机] 阶梯扩孔
counterboring with step core drill 阶梯扩孔
two-step p taper shank drill 两级锥柄钻头
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