How Do They Do It? Season 16 Episode 14 High Rise Window Cleaners, Jigsaw Puzzles, Field Hockey Sticks ( Air Date 2019-07-25 ) Genre Documentary category. Overview "How do they keep the world's tallest twin towers clean? How do they make a jigsaw where every piece is unique? And, how do they craft Olympic level hockey sticks?".
How Do They Do It? Season 16 Episode 14 High Rise Window Cleaners, Jigsaw Puzzles, Field Hockey Sticks
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