co2 laser tubes:high power, good beam spot,competitive price, which are applied to laser engraving, laser cutting.etc. Beijing EFR Laser S&T Co., Ltd, is ... majors in the research, development and production of carbon dioxides laser tubes and a series of products. Our products have characteristics of ... +TEM10)CL-1250Ø55×125065 7022CL-1200Ø55×120060 7022 co2 laser tube