lts main.raw material bayer alumina.which is electrically fused in temperature.lt is white and its hardness is higher,but toughness lower than that of brown fused alumina.
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释义
白刚玉是以氧化铝为原料,经高温熔炼而成。呈白色,硬度比棕刚玉略高,韧性稍低。
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