An improved L12 aluminum alloy having magnesium or nickel; at least one of scandium, erbium, thulium, ytterbium, and lutetium; at least one of gadolinium, yttrium, zirconium, titanium, hafnium, and niobium; and at least one ceramic reinforcement. Then, regions where the two enlarged wiring patterns overlap each other are removed, thereby forming a dummy pattern. The prize may be a progressive jackpot which comprises an initial starting value and a contribution from the amounts wagered on the electronic gaming devices. The belts preferably have a cross-denticulation which is located on the edges of the sides facing the driving rollers, or which is continuous. 4 mm, and fourth dimples with a diameter of 0.