![](https://assets.tv24.co/channels/quest-1-l.webp)
Aired Saturday March 2,
6:30am - 7:00amon Quest +1
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