How Do They Do It?

8:30 AM to 9:00 AM
Saturday 6 July
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Road Rollers/Mobile Phones

Season 12 Episode 6 of 20

Investigating how heavy duty road rollers are built, and revealing how mobile phones are manufactured with the care and precision of a Swiss watch

How Do They Do It? airs on Discovery Channel HD at 8:30 AM, Saturday 6 July. (Subtitles.)
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