Amazon.com: TEN-HIGH 40W CO2 Laser Tube 700mm D50mm, Wires Preconnected with Coating, for Laser Cutter Laser Engraving Cutting Machine : Arts, Crafts & Sewing
Amazon.com: Monport 40W Laser Engraver, 40W Lightburn (8" X 12") CO2 Laser Engraver & Cutter with Red Dot Guidance, 3 LED Monitor Display and Water Cooling System
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BuildYourCNC - 40 Watt CO2 Laser Tube
Orion Motor Tech 40W Co2 Laser Engraving Cutting Machine, Digital Cont – Pete's Arts, Crafts and Sewing