All Episode in Season 4

1. Plastic Bottles and Jars, Mail, Eggs, Handcrafted Wooden Pens 2. Plastic Injection Moulds, Automotive Oil Filters, Filing Cabinets, Blown Glass 3. High-Precision Cutting Tools, Stained Glass, Semi-Trailers, Recorders 4. Conga Drums, Metal Plating, Buttons 5. Grinding Wheels, Compost, Window Blinds, Milk 6. Brushes and Push Brooms, Blackboards, Smoked Salmon, Zippers 7. 3D Commercial Signs, Hardwood Floors, Corrugated Polyethylene Pipe, Mattresses 8. Ceramic Tiles, Nuts, Steel Forgings, Skateboards 9. Car Engines, Flour, Recliners, Envelopes 10. Plastic Cups and Cutlery, Special Effects Makeup, Gold, Harps 11. Countertop Laminate, Frozen Treats, Children's Building Blocks, Detergents 12. Architectural Moldings, Pulleys, Industrial Rubber Hose, Sheet Vinyl Flooring 13. Putty Knives, Garage Doors, Electric Motors, Wool

Season List

How It's Made Specials How It's Made Season 1 How It's Made Season 2 How It's Made Season 3 How It's Made Season 4 How It's Made Season 5 How It's Made Season 6 How It's Made Season 7 How It's Made Season 8 How It's Made Season 9 How It's Made Season 10 How It's Made Season 11 How It's Made Season 12 How It's Made Season 13 How It's Made Season 14 How It's Made Season 15 How It's Made Season 16 How It's Made Season 17 How It's Made Season 18 How It's Made Season 19 How It's Made Season 20 How It's Made Season 21 How It's Made Season 22 How It's Made Season 23 How It's Made Season 24 How It's Made Season 25 How It's Made Season 26 How It's Made Season 27 How It's Made Season 28 How It's Made Season 29 How It's Made Season 30 How It's Made Season 31 How It's Made Season 32