Amazon.com: Cloudray CO2 Laser Tube 90W 100W Length 1250mm Dia.80mm Glass Tube With Metal Head For 90-100W CO2 Laser Engraving Cutting Machine : Arts, Crafts & Sewing
Amazon.com: RECI 100W CO2 Laser Tube W4/S4 (Peak 130W) 1400mm for Laser Engraving Cutting(US Stock) : Arts, Crafts & Sewing