Season 22 Episodes13
Cast1

Lynne Adams
Narrator (voice)
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Ranked #1 of 13 in Season 22•+0.2 vs season avg
Thick steel plates, internal reinforcement and heavy locking mechanisms are combined to produce doors capable of resisting powerful explosions. Waxes, oils and pigments are blended and moulded into lipstick; sculpted trunks and synthetic fronds become artificial palm trees; and engraved or cast brass plates are

Lynne Adams
Narrator (voice)
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"Blast Doors, Lipstick, Artificial Palm Trees, Brass Plaques" is episode 4 of How It's Made season 22. It scored 7.6/10 from 17 votes, ranking #1 of 13 episodes this season (season average 7.4). It aired on November 7, 2013.