How It's MadeSeizoen 13Seizoen 13Seizoensnummer13Season name—AfbeeldingenPoster#AfbeeldingTitelUitgezonden1Hammers; Swiss Cheese; Roller Skates; Coloured Pencils1 mei 20092Carbon Fiber Bicycles; Blood Products; Forged Chandeliers; Ballpoint Pens1 mei 20093Swiss Army Knives; Player Piano Rolls; Oil Tankers; Racing Wheels8 mei 20094Bowling Balls; Barber Poles; Felt; Radar Guns15 mei 20095Copper Pipe Fittings; Cylinder Music Boxes; Pepper Mills; Hot Rod Steering Columns22 mei 20096Gears; Leather Watchbands; Vitrelle Dishes; Kitchen Shears29 mei 20097Pressure Cookers; Mechanical Singing Birds; Oceanographic Buoys; Tank Trailers5 jun 20098Aluminum Boats; Alpine Horns; Luxury Watches12 jun 20099All-Terrain Vehicles; Alpine Skis; Laser Cutters; Marble Sculptures19 jun 200910Socket Sets; Leather Shoes; Aluminum Water Bottles; Bike Chains3 jul 200911Carved Wood Sculptures; Flatware; Cow Bells; Fountain Pens10 jul 200912Olive Oil; Lift Trucks; Seamless Rolled Rings; Ski Boots17 jul 200913Cookware; Inlaid Boxes; High-Efficiency Water Heaters; Vespa Scooters24 jul 2009
