Hunst CO2 10600nm Laser Beam Expander 2X 2.5X 3X 4X Expansion Ratio M22*0.75 Lense Optics For CO2 Laser Marking Machine

Hunst CO2 10600nm Laser Beam Expander 2X 2.5X 3X 4X Expansion Ratio M22*0.75 Lense Optics For CO2 Laser Marking Machine

Aliexpress UK