Iron ore is the main raw material for producing iron and steel.

铁矿石是钢铁生产最主要的原料。

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Some raw materials, such as iron ore, come from mines.

有些本材料，如铁矿等，是从矿山里开采出来的。

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Some raw materials, such as iron ore, come from mines.

有些本材料，如铁矿等，是从矿山里开采出来的。

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