Halogen Bulbs, Cellulose Insulation, Aluminum Ladders, Bamboo Fly Rods

How It's Made – Season 7

Quartz envelopes, filaments and halogen gas are combined into light bulbs, recycled paper is treated and processed into cellulose insulation, aluminum rails and rungs are assembled into ladders, and carefully selected bamboo strips are joined and finished into fly-fishing rods.