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.
史密斯第一步先制造拉模板，这是一种钻有大小不同的圆锥形窟窿的钢板，它可以逐渐使铁丝达到要求的粗细。
Familiar with or a basic understanding of steel, plate, pipe material price.
熟悉或基本了解钢材，板材，管材等材料的价格。
Oil bath of air filters for a steel plate of vertical barrel container.
油浴式空气过滤器为一个钢板制成的立式圆桶容器。
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