这类产品包括许多稀有金属或贵金属，贱金属或合金带材或各种形状的挤压型材，某些轴承金属，某些硬软磁性材料等。
Examples of this class include many of the rare or precious metals, strip or extruded shapes in base metals or alloys, some bearing metals, some hard or soft magnetic materials, etc.
讨论了合金成分配比、添加元素、制备及热处理工艺对磁体硬磁性能的影响。
The actions of the alloy composition, the addition of various elements and the quenching and annealing technical processes on the hard magnetic properties of magnets are discussed.
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