How It's Made S32E13 Peaked Caps, Custom Water Heaters, Electric Boats, Fencing Foils

How It's Made Season 32 Episode 13 Online – 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.