Plastics-Prototypes (Manufacturing) is a subdivision of the Plastics Products, Not Elsewhere Classified (Manufacturing) industry. Companies in this industry specialize in the production of plastic prototypes, which are used for testing and evaluating new product designs before mass production. The process involves creating a three-dimensional model of the product using computer-aided design (CAD) software and then using various manufacturing techniques to produce a physical prototype. This industry plays a crucial role in the product development process, as it allows companies to test and refine their designs before investing in expensive mass production.