... corrosion, resistant-wearing Purity of material: 95%, 96% and 99% alumina optional Process: heat compression molding or dry ... the resistant-high-temperature, resistant-corrosion, resistant-wearing and good sealing. 3.Good flatness, no deformation. 4 ... , chemical, medicine, mobile manufacture, war industries, and metallurgy, printing and dying, food, mechanical and many other industry. gasket sheet