How It's Made Season 4

This episode demonstrates the production processes for plastic bottles & jars, mail, eggs, handcrafted wooden pens, and shows how each is made.

This episode demonstrates the production processes for plastic injection moulds, automotive oil filters, filing cabinets, blown glass, and shows how each is made.

This episode demonstrates the production processes for high-precision cutting tools, stained glass, semi-trailers, recorders, and shows how each is made.

This episode demonstrates the production processes for conga drums, metal plating, buttons, and shows how each is made.

This episode demonstrates the production processes for grinding wheels, compost, window blinds, milk, and shows how each is made.

This episode demonstrates the production processes for brushes & push brooms, blackboards, smoked salmon and zippers, and shows how each is made.

This episode demonstrates the production processes for 3D commercial signs, hardwood floors, corrugated polyethylene pipe and mattresses, and shows how each is made.

This episode demonstrates the production processes for ceramic tiles, nuts, steel forgings and skateboards, and shows how each is made.

This episode demonstrates the production processes for car engines, flour, recliners and envelopes, and shows how each is made.

This episode demonstrates the production processes for plastic cups & cutlery, special effects makeup, gold and harps, and shows how each is made.

This episode demonstrates the production processes for countertop laminate, frozen treats, children's building blocks and detergents, and shows how each is made.

This episode demonstrates the production processes for architectural moldings, pulleys, industrial rubber hose and sheet vinyl flooring, and shows how each is made.

This episode demonstrates the production processes for putty knives, garage doors, electric motors and wool, and shows how each is made.