The sulfur content in pellets almost remains the same during the said process, the sulfur content in sponge iron originates from iron ores.
球团在还原过程中硫含量基本不变，海绵铁中的硫基本上源于矿石。
The sulfur content in pellets almost remains the same during the said process, the sulfur content in sponge iron originates from iron ores.
球团在还原过程中硫含量基本不变，海绵铁中的硫基本上源于矿石。
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