Season 12 Episodes13
Cast1

Lynne Adams
Narrator (voice)
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Ranked #9 of 13 in Season 12•−0.2 vs season avg
Curved aluminum panels and fitted interiors are assembled into Airstream travel trailers, horseradish roots are cleaned, ground and prepared as a condiment, heavy steel vessels and burner systems are combined into industrial steam boilers, and active ingredients are blended and packaged as deodorant.

Lynne Adams
Narrator (voice)
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"Airstream Trailers, Horseradish, Industrial Steam Boilers, Deodorant" is episode 10 of How It's Made season 12. It scored 7.3/10 from 19 votes, ranking #9 of 13 episodes this season (season average 7.5). It aired on March 11, 2009.