• Harding commenced by manufacturing a drawplate, that is to say, a plate of steel, pierced with conical holes of different sizes, which would successively bring the wire to the wished-for tenacity.

    史密斯第一步制造拉模板,一种大小不同圆锥形窟窿钢板可以逐渐使铁丝达到要求的粗细。

    youdao

  • Harding commenced by manufacturing a drawplate, that is to say, a plate of steel, pierced with conical holes of different sizes, which would successively bring the wire to the wished-for tenacity.

    史密斯第一步制造拉模板,一种大小不同圆锥形窟窿钢板可以逐渐使铁丝达到要求的粗细。

    youdao

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