A display method applied to an electrophoretic display having pixels includes steps as follows. The method includes providing a diesel engine having an air intake, a combustion chamber, and an exhaust. This invention makes use of an inner can top composed essentially of niobium, which, under the compression pressure of an ultra high pressure press, bonds to a molybdenum disk, thereby providing improved tensile strength, abrasion resistance, bonding strength, as well as improved control over the cutting surface flatness.