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Co2 Laser Beam Expander 2.5x Lens 10.6um Fixed Series 2.5times Expander Use For Co2 Laser Mark Machine - Tool Parts - AliExpress
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Co2 Laser Beam Expander 2x 2.5x 3x 4x 5x 6x 8x Fixed Series 10.6um Use For Co2 Laser Mark Machine - Lenses - AliExpress