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    4. 福州高特光电科技有限公司

      MaterialColor glass from Schott or equivalent
      Dimension Tolerance+0.00/-0.10mm
      Thickness Tolerance±0.20mm
      Clear Aperture>90%
      Parallelism< 30", up to 3"
      Surface Quality60-40 commonly, up to 40-20
      Flatnessλ/4 commonly, up to λ/10
      ChamferProtective Bevel <0.25mmx45deg

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