... strength, high chemical stability, and excellent heat endurance, inert alumina ball can resist high temperature, high pressure, acid, alkali, salt ... to support and cover catalystin the reactor, inert alumina ball can buffer gas or liquid's flush on catalyst so ... of gas or liquid in the reactor.Anamina ballInert Alumina Ball, Technical SpecificationsProduct Series20-2525-4545-7070-9090AL2O3 (%)20-25 ...