... 3.Covering and supporting the catalysts 4.Ceramic tower packing We produce high alumina balls of 90-92%, 95%, and more than ... materials in ceramic, cement, paints, pigments, chemicals, pharmaceuticals, paint industry. We produce high alumina balls of 90-92%, 95%, and more than ... .015<0.01AppearancewhitewhitewhitewhiteSize (mm)30,40,50,60,70 We may act according to the customer the request manufacture.