Claim: Permanent mold casting is a metal casting process, a process in which a liquid metal is somehow delivered into a mold, that employs reusable molds usually made from aluminium, magnesium, and copper alloys.
Evidence: Permanent mold casting is a metal casting process that employs reusable molds ("permanent molds"), usually made from metal. In metalworking and jewellery making, casting is a process in which a liquid metal is somehow delivered into a mold (usually by a crucible) that contains a negative impression (i.e., a three-dimensional negative image) of the intended shape. Common casting metals are aluminium, magnesium, and copper alloys.