![](https://assets.tv24.co/channels/quest-l.webp)
Aired Saturday March 2,
5:30am - 6:00amon Quest
How It's Made
Series 25 Episode 13: Traffic Signal Poles, Coffee Filters, and Chainsaw Mining MachinesSee how traffic signal poles, coffee filters, and chainsaw mining machines are made.
- Category
- Documentary / Science
- Original air date
- 2015-07-02
Cast and crew