Laser Machine, Laser Marking Machine, Laser Engraving Machine manufacturer / supplier in China, offering High-Performance CO2 Laser Tube for Non-Metal Cutting 40W 50W 1000mm Length, Regular Catalyst CO2 Laser Tube 400W 500W 600W 800W, Laser Focusing Lens F=50.8mm / 63.5mm, Dia. 20mm Made in China Since 2009 and so on.