The present invention provides a method and system for making inter-network payments. The sealing mechanism includes a shaft and sealing element affixed adjacent an end of the shaft. An iron based powder composition which achieves desired microstructureproperties and associated sliding wear resistance with reduced content of expensive alloying ingredients such as admixed elemental Ni and Copper. At least the back one third of the high lift surface is cambered, and a beam of the high lift surface is greater than two thirds of the maximum width of the hull. At least one of the microprocessor unit, the function unit, or the display controller unit may further include the described semiconductor package.