Extrusion of plastics is one of the most widely used forms of polymer processing. This video depicts in a simple graphic form the main principles of extrusion. If you are interested in receiving the video or the .SWF file to embed into your presentation, leave me a comment below and I will send it to you free of charge.
![](https://i.ytimg.com/vi/uUpcI1uu4rQ/maxresdefault.jpg)