Ferrous tool materials have iron as a base metal and include tool steel, alloy steel, carbon steel, and cast iron.

黑色工具材料以铁为基材，包括工具钢，合金钢，碳钢，铸铁。

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Ferrous tool materials have iron as a base metal and include tool steel, alloy steel, carbon steel, and cast iron.

黑色工具材料以铁为基材，包括工具钢，合金钢，碳钢，铸铁。

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