Season 23 Episodes13
Cast1

Lynne Adams
Narrator (voice)
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Ranked #2 of 13 in Season 23•+0.3 vs season avg
Heat-resistant ceramic sections are moulded, fired and assembled into fireplaces. Polymer materials are formed into synthetic bottle corks designed to provide a consistent seal, while reinforced concrete is poured into large moulds, cured and finished to produce prefabricated floor slabs for parking garages.

Lynne Adams
Narrator (voice)
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"Ceramic Fireplaces, Synthetic Corks, Parking Garage Floor Slabs" is episode 6 of How It's Made season 23. It scored 7.5/10 from 11 votes, ranking #2 of 13 episodes this season (season average 7.2). It aired on May 15, 2014.