How It's Made Season 5 Episode 8 Suits of Armor, Street Light Poles, Bent Hardwood, Membrane Switches ( Air Date 2005-10-26 ) Genre Documentary category. Overview "Shaped steel plates are fitted together into traditional suits of armour, long sections of metal are formed and finished into street light poles, steamed hardwood is bent around molds, and printed conductive layers are laminated into membrane switches.".