High quality 20mm GaAs Focus lens (F75mm)

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High quality 20mm GaAs focus lens for laser tube as 180Watt without cooling needed
Better quality means 15~20% more power than the others!

Diameter: 20mm
Type: Focus Lens (imported)
Base: GaAs
Focus: 75mm
Feature: Cutting
Laser type: 10600nm CO2

Note: GaAs is incapable to pass red beam laser.