To make a countersink on or in.
在…上或…内造埋头孔。
Its sophisticated products can be widely used in machining of drilling, reaming, reaming, Tapping countersink flat and so on.
其精良的产品可广泛应用于机械加工中的钻孔、扩孔、铰孔、锪平面及攻螺纹等。
Its sophisticated products can be widely used in machining of drilling, reaming, reaming, Tapping countersink flat and so on.
其精良的产品可广泛应用于机械加工中的钻孔、扩孔、铰孔、锪平面及攻螺纹等。
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