There are lots of advantages provided by die casting manufacturers which are immensely useful for prospective customers. The process permits the production of parts with close tolerances, high surface quality and hardly any need for post finishing. Furthermore, it is a highly efficient and repeatable process--hence aims to manufacture very large numbers of parts at one time. Finally Die casting brings cost savings; there is less material wastage than in other methods such as machining or stamping partouts and this means reduced requirement for wasteful secondary processes. In addition, since die cast parts are more reliable due to the metal flow filling all major structures within a mold cavity rather than merely perverting them later which leads to lesser integral strength of certain components and lingering defects at sharp corners like leaks, they tend to have long service life issues for end users.