S1·E4 – Hearing Aids, 3-D Puzzles, Rubber Mats, Toilets
2001-01-27 • 21 min
This episode demonstrates the production processes for hearing aids, 3-D puzzles, rubber mats and toilets, and shows how each is made.
2001-01-27 • 21 min
This episode demonstrates the production processes for hearing aids, 3-D puzzles, rubber mats and toilets, and shows how each is made.