Ib leeg siv lead ua corundum muaj qhov zoo ntawm ntau qhov txiav ntug, siab hardness, siab toughness tus nqi, muaj zog sib tsoo quab yuam, tsis tshua muaj kev sib tsoo kub, ntev abrasive txiav lub neej, thiab tuaj yeem ua cov hlau tawv thiab tawv, xws li stainless hlau, high vanadium high speed steel, etc. Nws kuj yog tshwj xeeb tshaj yog haum ...
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