What is the abrasive grain being used, aluminum oxide, silicon carbide, zirconium etc? - Especially for the last pass.

问我们打磨用的砂是什么材料的，氧化铝？金刚砂？

youdao

What is the abrasive grain being used, aluminum oxide, silicon carbide, zirconium etc? - Especially for the last pass.

问我们打磨用的砂是什么材料的，氧化铝？金刚砂？

youdao