Sleeper Rigs, Pecans, Steel Pulleys, Acetate Eyewear

How It's Made – Season 31

Extended sleeping compartments are constructed and equipped for long-haul trucks; harvested pecans are cleaned, cracked, separated and graded; steel blanks are machined with grooves and central bores to produce pulleys; and cellulose-acetate sheets are cut, shaped and polished into eyeglass frames.