List of How It's Made episodes Season 4: 2004 Season 4: 2004

| Series_Ep_ | Episode | Netflix | Segment_A | Segment_B | Segment_C | Segment_D |
|---|---|---|---|---|---|---|
| 4-01 | 40 | S02E14 | Plastic Bottles & s Jar | Mail | s Egg | ed Handcraft en Wood s Pen |
| 4-02 | 41 | S02E15 | Plastic Injection Moulds | Automotive Oil Filters | Filing Cabinets | Blown Glass |
| 4-03 | 42 | S02E16 | High-Precision Cutting Tools | Stained Glass | s Semi-trailer | s Recorder |
| 4-04 | 43 | S02E17 | Conga Drums | Metal Plating | s Button (Part 1) | s Button (Part 2) |
| 4-05 | 44 | S02E18 | Grinding Wheels | Compost | Window Blinds | Milk |
| 4-06 | 45 | S02E19 | es Brush and Push Brooms | s Blackboard | Smoked Salmon | s Zipper |
| 4-07 | 46 | S02E20 | 3D Commercial Signs | Hardwood Floors | Corrugated Polyethylene Pipe | es Mattress |