If you want to ship the goods in container, we can do it with pleasure. In case of your not wanting so, we shall use our original packing to ship the goods.
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【简答题】某钢铁厂原计划用290t含Fe 3 O 4 80%的磁铁矿石冶炼铁,因采购原料的原因,改用含Fe 2 O 3 的赤铁矿石,现要求炼出同样多的铁,试求: (1)290t磁铁矿石中含Fe 3 O 4 的质量. (2)这种赤铁矿石中需要含Fe 2 O 3 的质量是多少?