How It's Made
Steel Shipping Drums/Police Whistles/Glass Blocks
Season 10 Episode 12 of 13
The manufacture of steel shipping drums, police whistles, miniature train cars and glass blocks, and how technology has led to improvements in their production
How It's Made airs on Discovery Channel HD at 6:00 AM, Friday 5 June. (Subtitles.)
Learn more about How It's Made and other education/science/factual topics on our factual page
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Education ➝ Science ➝ Factual Topics
Technology