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攻丝就是用丝锥加工内螺纹。丝锥是使用最广泛的内螺纹加工刀具,对于小尺寸的内螺纹,攻丝几乎是唯一的加工方法。丝锥的工作
Tapping is the use of tap internal thread. Tap is the most widely used internal thread machining tool, tapping is almost the only processing method for small-size internal thread. Taps work