1. Binoculars, Sparklers, Rubber Boots, Circular Saw Blades
Aired Sep 10, 200821 minTMDb
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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