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How Do They Do It?
Series 11 Episode 1: Parmesan; Runways; Reclining ChairsHow do they make the king of cheeses, parmesan, how do they keep the runways running at the world's busiest airports and how do they manufacture relaxing reclining chairs?
- Category
- Documentary / Educational / Science
- Original air date
- 15/05/2014
Cast and crew