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Tuesday, August 14, 2012

Spectacle frames



  • Finding eyeglasses with the qualities that are most important to you could be as simple as choosing the right frame material, because each type has its own unique strengths.
  • If you want the colors of the rainbow, then zyl (zylonite, or cellulose acetate) is your material.
  • Eyeglasses made of nylon first were introduced in the late 1940s. Because of brittleness and other problems, eyeglass manufacturers switched to blended nylon (polyamides, co-polyamides and gliamides).

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