Metals can be classified as pure metals and alloys.

金属可分为纯金属与合金两类。

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We want to buy Buffing Compounds, Electro, Lustre, Metal Rouge, Electroplating Metals and alloys.

我们要采购擦光化合物，电镀物品，光彩，金属口红，电渡金属和合金。

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The thermal activation parameters of metals and alloys in the plastic deformation process are studied.

本文研究了金属和合金塑性变形过程的热激活参量。

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Information provided by Metal Pages, a news site that focuses on non-ferrous metals, ferro alloys and rare earths, indicated that rare earth elements exports have dropped 65% in 2011 and that China has only exported 11, 000 metric tons of rare earths through the first three quarters of the year.

FORBES: 2012 Outlook: Uncertainty Continues For Rare Earths Prices, China Still Major Player

The other significant industrial user is iron and steel production, though iron ore and various other metals used to make alloys are also significant costs.

FORBES: Energy Forecast 2013-2014: Convert to Natural Gas

Copper can also be mixed with other metals to make valuable alloys such as bronze, pewter and brass.

FORBES: Gold Is Good, These Five Metals May Be Better