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Photochromic Flint Button

  • Item No : P1G-424803
  • Payment Term : L/C, T/T, Negotiable
  • Min. Order : Negotiable
  • Unit Price : Contact Us
  • Email To Us :
  • Place of orgin : China
  • Transportation : Negotiable
  • Delivery Time : Negotiable
  • Contact Details :
Photochromic Flint Button Features Specifications :

Features:



1) Fusing with phtoochromic glass blank

2) Expansion ratio: 8.3 - 8.7 x 10 - 7

3) Refraction ration: 1.653

4) Softening temperature: 460 degree

5) Fusing temperature: 580 degree

6) Abbe number: 38

7) Gravity (d): 3.85.
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