A bar of steel worth five dollars, when wrought into horseshoes, is worth ten dollars.
一条值五块钱的钢铁，如果作成蹄铁，可以卖十块钱；
2
Ferrous metals include iron and alloys of at least 50% iron, such as cast iron, wrought iron, steel, and stainless steel.
黑色金属包括铁和含有50%以上铁的合金，比如铸铁，锻铁，钢和不锈钢。
3
They have possessed high flexibility in their alloying design to increase their performance in heat and wear resistance in comparison with that of conventional wroughtsteel and cast alloys.