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HUNST CO2 Laser Head for K40 Series Laser Engraving Cutting Machine Lens Dia:12/16/18mm FL38.1/25.4/ 50.8mm Mirror 20mm - AliExpress
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LASER TREE K40 Laser Module 40W Optical Power with Air Assist Laser Head 450nm TTL Blue Light for Engraver Cutting Wood Tools - AliExpress
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Amazon.com: FONLAND K40 CO2 Laser Head Set Incl Laser Head & 1st 2nd Mirror Mounts Dia.20mm FL.50.8mm, for 2030 4060 K40 Laser Engraving Cutting Machine, Red
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Amazon.com: Mini Two Axis Rotary. Ideal for K40/D40 Co2 Laser Engraving Machine : Arts, Crafts & Sewing
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