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How It's Made · S32E13

Peaked Caps, Custom Water Heaters, Electric Boats, Fencing Foils

Still from How It's Made S32E13

Summary

Wool, foam, lining, plastic stiffeners and decorative fittings are carefully sewn together to produce uniform peaked caps. Copper or stainless-steel tanks are formed around internal heating coils and pressure-tested, fibreglass hulls receive batteries and electric propulsion systems, and flexible steel bars are forged, heat-treated, wired and fitted with pressure-sensitive tips to become fencing foils.