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  Text 1Metals are found everywhere in our life They are classified into two categories, “ferrous” and “non-ferrous” metals Ferrous means relating to, or containing iron and non-ferrous means having n

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  Text 1Nonferrous metals and alloys cover a wide range of materials, frommon metals such as aluminum，copper, and magnesium to high-strength, high-temperature alloys, such as those of tungsten, ta

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  Text 1By virtue of their wide range of mechanical, physical, and chemical properties, ferrous metals and alloys are among the most useful of all metals Ferrous metals and alloys contain iron as thei