YL A Series A6s 130W CO2 Laser TubeDownload the Manual Precision Engraving: YL CO2 Laser Tubes offer superior construction to produce stable laser beams for precise markings on a wide variety of materials. Cut through thicker materials and engrave your designs faster, deeper, and clearer. The water outlet and inlet allow efficient flow of cooling water. Made out of borosilicate glass, copper, and aluminum alloy Equipped with threaded poles to attach a red laser guidance system (not