- Firozabad, India, is the biggest manufacturer of glass bangles in the world.
- They're crafted in blazing hot furnaces that can reach up to 2,000 degrees Fahrenheit.
- The melted glass can burn workers and singe their clothes if they're not careful.
Bangles are a staple accessory for women across South Asia. But making them involves standing in stifling heat and inhaling glass particles, all while handling dangerous melted glass that's as thin as water.