How Its Made Thermoplastic Fire Helmets

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These plastic helmets remain sturdy even when exposed to temperatures of over 500 degrees Fahrenheit. • Stream Full Episodes of How It's Made: • https://www.sciencechannel.com/tv-sho... • Subscribe to Science Channel: • http://bit.ly/SubscribeScience • Like us on Facebook: •   / sciencechannel   • Follow us on Twitter: •   / sciencechannel   • Follow us on Instagram: •   / sciencechannel  

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