This artical talk about plastic materials in seven classes, and plastic processes. Also properties of plastics and application of plastics.
Simply to say, 3D printing is a prototyping process, while injection molding is a mass production process. If you want to create a unique product, you can choose 3D printing. However, if mass production is required, you need to choose injection molding.
Now we compare the characteristics and selection principles of polypropylene (PP) and high-density polyethylene (HDPE).
Polypropylene has more excellent properties than HDPE, such as good gloss and good appearance.
Injection Molding Factory In China.
