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How It's Made
S11 E1Binoculars, Sparklers, Rubber Boots, Circular Saw Blades
7.7
2001
Canceled
Documentary
Precision lenses and prisms are aligned inside binoculars, metal wire is coated with pyrotechnic material to make sparklers, liquid rubber is molded and vulcanized into waterproof boots, and hardened steel is cut and sharpened into circular saw blades.
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