Profile: Sumangal Castings Pvt. Ltd. specializes in manufacturing and exporting of precision investment castings. We are an ISO 9001:2008 certified company. Die-casts are made up of non-ferrous metals like aluminum, magnesium, and zinc and can't be used for ferrous metals parts manufacturing. Hence, the material selection is of prime importance when want to cast ferrous metals. The lost wax casting process manufactures engineering components of the quality where one disposable pattern is used to produce only one metal part.