Prototype mold You will generally use a prototype mold to produce small series of plastic injected parts from around 200 to a few thousand. The structure of the mold is simplified and optimized so as to accelerate the manufacturing process and lower the overall cost. This kind of mold consists of a standard interchangeable metal mold base and customized aluminium core and cavity inserts. The latter is manufactured your by CNC machining. Machining aluminium is easier and faster, it is also more flexible in case you need to modify or adapt the design. The ejection, guiding, cooling and thermic regulation functions are simplified and using aluminium lowers the injection cycles.Wholesale Prototype Molds website:http://www.huaxindustry.com/rapid-prototyping/prototype-molds/