Akwa akwa aja
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Aluminom oxide/Black silicon carbide/Zriconia oxide
A na-akpọkwa akwa emery ígwè emery akwa na akwa emery ígwè.A na-eme akwa abrasive site na ijikọ abrasive (ụmụ irighiri ájá) n'otu n'otu na efere akwa siri ike na ihe nkedo.A na-ejikarị ya eme ka nchara, agba ma ọ bụ gbaa n'elu metal workpiece na polished elu.A pụkwara iji ya na-ehicha ihe ndị na-abụghị ọla dị ka ọkpụkpụ ọkpụkpụ.
