Season 21 Episodes13
Cast1

Lynne Adams
Narrator (voice)
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Ranked #6 of 13 in Season 21•+0.1 vs season avg
Different rubber compounds are mixed and assembled with reinforcing fabric, steel belts and tread before being moulded and vulcanized into car tires. Fine filaments are unwound from silkworm cocoons and combined into thread; conservators clean, stabilize and repair ageing works of art; and high-pressure metal

Lynne Adams
Narrator (voice)
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"Car Tires, Silk, Art Conservation, Scuba Tanks" is episode 13 of How It's Made season 21. It scored 7.5/10 from 18 votes, ranking #6 of 13 episodes this season (season average 7.4). It aired on June 27, 2013.