Hunst China CO2 ZnSe Focus Lens Dia.12 20mm FL 50.8 63.5mm for Laser Engraving Cutting Machine Spare Parts $100 - $400 The net weight of the

The net weight of the 30W machine is 6-6

the shipping price changes quickly

This series of pulsed fiber lasers are characterized by highpeak power

Good light transmittance and higher efficiency

Hunst China CO2 ZnSe Focus Lens Dia.12 20mm FL 50.8 63.5mm for Laser Engraving Cutting Machine Spare Parts $100 - $400 The net weight of theHigh quality ZnSe crystal: China PVD ZnSe material, Excellent optical properties, Up to 200W CO2 laser resistance. Superb coating process: Double sided solid coating, reduces laser loss, laser transmittance up to 99. 8%High precision process: Eccellent substrate Precise sling, polishing grinding processes, high temperature, laser resistance. 1. Use an air bulb to blow off any loose contaminants.(dust,lint particles) 2. Squeeze a few drops of acetone