It is the main raw material in manufacturing abrasive products .there are two convential abrasives :aluminium Oxide and Silicon Carbide.是什么意思_It is the main raw material in manufacturing abrasive products .there are two convential abrasives :aluminium Oxide and Silicon Carbide.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句