Sand casting is a type of metal casting process that uses sand as the mold material. It's one of the most versatile and cost-effective processes for creating metal castings, and can be used to create parts in almost any shape or size. The process involves pouring molten metal into a sand mold, allowing it to cool, and then breaking away the sand to reveal the finished part.Welong is able to produce the customized metal casting parts according to customer’s drawings or samples.