Injection blow moulding

This video is aimed at school students of design and technology, and engineering. The video covers:
1. the process of using an injection moulding machine to fill a preformer with heated polymer
2. transferring the preform to a mould where it is forced against the sides of the mould by a blast of compressed air
3. chilling the moulded polymer, ejecting it, then repeating the injection blow moulding process.