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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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Amazon.com: CNCOLETECH 18mm CO2 Laser Lens, Laser Mirror PVD ZnSe Focus Lens 50.8mm / 2" Focal for CO2 Laser Engraver Cutting Cutter
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Amazon.com: TEN-HIGH CO2 Laser Lens 18mm Laser Mirror CO2 Laser Focal Lens Laser Focus Lens, ZnSe for CO2 Laser Engraving Cutting Machine, Dia18mm FL50.8mm
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