A method is used in which molten metal is poured in uniformly in a radial pattern from the center of the part when manufacturing circular parts. This results in well-balanced filling to improve dimensional precision, and it achieves a roundness level of 0.08 with machine pressing. It also reduces the number of blowholes, and extends the life expectancy of dies. This has enabled us to succeed in creating aluminum diecast hub brakes, drum direct clutches and other such parts with high levels of circularity that need to be wear-resistant and that have been molded on steel presses up until now. HUB BRAKE and DRUM DIRECT CLUTCH, etc.