The majority of the structural components produced by fixed die pressing are iron-based. The powders are elemental, pre-alloyed, or partially alloyed.
大多数用固定模压制的结构件都是铁基的。粉末可以是单一元素、预先合金或部分合金。
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Elemental composition can vary within the same copper-ore lode, usually because of varying admixtures of other elements, especially iron, lead, zinc, and arsenic.