即黄刚玉 Yellow Sapphire
黄宝石刚玉 Yellow Sapphire
黄玉金刚杵 topaz vajra
黄色蓝宝石---刚玉 Yellow Sapphire--Corundum
·2,447,543篇论文数据，部分数据来源于NoteExpress
陶瓷结合剂白刚玉磨具会出现白里显红、红黄、青灰色调，严重影响产品的外观质量。
The white alumina abrasives made with vitrified bond may show red in white, red -yellow or celadon-gray. This will influence on the appearance quality of the products seriously.
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