Co2 Laser Beam Expander 2x 2.5x 3x 4x 5x 6x 8x Fixed Series 10.6um Use For Co2 Laser Mark Machine - Lenses - AliExpress
Zoom Beam Expander | EKSMA Optics
Amazon.com: Cloudray CO2 10600 nm Laser Beam Expander 2X 2.5 x 3 x 4 x 5 x 6 x 8 x Galvanometer Laser Marking Lenses Optics Rays Expand 10.6μm-2X : Industrial & Scientific
Amazon.com: Cloudray CO2 10600 nm Laser Beam Expander 2X 2.5 x 3 x 4 x 5 x 6 x 8 x Galvanometer Laser Marking Lenses Optics Rays Expand 10.6μm-2X : Industrial & Scientific