Casting forward┬áRoss Aluminum Castings has been supplying quality aluminum castings to a wide range of industries since its founding in 1931. Jaclyn Beck reports on the companyÔÇÖs recent investments. Six thousand years ago, when the art of metal casting was first used to make idols of worship, jewelry, or basic tools, natural clay from river banks would be pasted over carved beeswax, and then placed in the sun to dry.