How It's Made

Retractable Ballpoint Pens, Solar Salt, Tubas

TV-PG
S14 • E13    Jan 8, 2010    20m
7.6
Watch Free
This episode demonstrates the production processes for Retractable Ballpoint Pens, Solar Salt, and Tubas and shows how each is made.

Cast of Retractable Ballpoint Pens, Solar Salt, Tubas

  • Brooks T. MooreNarrator (voice)

 

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