Professional Inert Alumina Ceramic Balls manufacturer ISO9001:2008 approved ZhongXing Inert Aluminum Ceramic Balls are available in different diameter from 2mm to 75mm per customer request. The Ceramic balls’ alumina content could also be 17%, 19%, 25%, 50%, 65%, 70%,95%,99% A host-crystalfeldspathicfeldspar mullite naturemullite naturemullite corundum naturecorundum natureAl203 content(%)20-3030 ...