- Table knives, plane irons and of a very superior kind are made of shear steel, while common steel is wrought up into ordinary cutlery. 佚名. 神奇的知识之书.
- Another difficulty was the lack of proper tools; but he worked at these until his box was supplied with a stock of knives, saws, , and gravers of many different patterns. 鲁伯特·萨金特·荷兰. 历史性发明.
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