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Laser beam and optic factors. The unfocused laser beam converges in the... | Download Scientific Diagram
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Amazon.com: CNCOLETECH CO2 Laser Lens Dia:20mm FL:2.5" or 63.5mm Laser Mirror CVD ZnSe Focus Focal Lens for CO2 Laser Engraving Cutting Engraver/Cutter 40W-200W
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