1pc 18*2mm Quartz window protective lens for Laser Engraving Cutting Machine
$ 4.75
Description
Quartz window protective lens for Laser Engraving Cutting Machine Material: Quartz Diameter tolerance: ± 0.01 mm Thickness Tolerance: ± 0.01 mm Light wavelength: 1064 nm Transmittance: 99.998% Light diameter: <50% Coating: double-sided high damage threshold of the anti-reflective film, single-sided residual rate R< 0.5% @ 1047-1064nm, the incident angle of 0 degrees, damage threshold> 15J / cm2, If the quantity can not meet your needs, please contact us to modify the inventory quantity. Thanks! On Jun-21-19 at 07:52:12 PDT, seller added the following information:
