Casting is a manufacturing process where liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then is allowed to solidify. Solid parts are also known as casting, which are removed or damaged from a mold to complete the process. Casting materials are usually metal or various time-setting materials which cure after mixing two or more components together; Examples are epoxy, concrete, plaster and clay. Casting is most often used to make complicated shapes that are difficult or uneconomic to be made by other methods. Heavy equipment such as machine tool pedestal, boat propeller, etc. Can be thrown easily in the required size, rather than making it by joining a few small pieces together.