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Amazon.com: MCWlaser CVD ZnSe Focus Lens Dia: 12mm FL: 1"/ 25.4mm for CO2 Laser Engraver Cutter 40W 50W 60W 80W 100W 130W 150W 180W 200W
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Ii-vi Infrared Co2 Laser Focus Lens Dia.19.05mm 20mm Fl 38.1/50.8/63.5/76.2/101.6 Mm For Co2 Laser Cutting Machine Lenses Znse - Lenses - AliExpress
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