锌合金重型刀，多级锁定的推纽，为工业生产所专用。
Heavy-duty zinc-alloy knife with multilevel locking push button is special for industrial production.
当前，齿顶整圆弧滚刀广泛应用于重型汽车变速器齿轮的生产中。
At present, full radius hob is used extensively for heavy transmission gear production.
当前，齿顶整圆弧滚刀广泛应用于重型汽车变速器齿轮的生产中。
At present, full radius hob is used extensively for heavy transmission gear production.
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