Hand Tools
GaAS Dia.20mm/19.05mm CO2 Laser Focus Lens Focal Length 50.8mm/63.5mm/76.2mm For High Power CO2 Laser Engraving Cutting Machine
GaAS Dia.20mm/19.05mm CO2 Laser Focus Lens Focal Length 50.8mm/63.5mm/76.2mm For High Power CO2 Laser Engraving Cutting Machine
https://www.bizrate.co.uk/handtools/gaas-dia-20mm-19-05mm-co2-laser-focus-oid42517429047.html