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1500mW Laser Engraving Machine Bluetooth DIY Wood Cutter Logo Printer 405nm | eBay
1500mW 405nm Violet Light Laser Head For DIY Carving Engraving Machine Part I5H0 | eBay
500mw 405nm Focusing Blue Purple Laser Module | 2.5w 450nm Blue Laser Module - 500mw - Aliexpress
Amazon.com: F-Yi 405nm Blue Purple Laser Engraving Machine Parts with TTL for DIY 3D Printer & Industrial : Arts, Crafts & Sewing
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Amazon.com: LaserPecker 1 Pro (Basic) Laser Engraver, Laser Engraving Machine 405nm Wavelength DIY Mini Laser Etcher, Compressed Spot 0.15mm High Precision Engraver with Protective Goggles for Wood Paper Leather
1W 405nm Laser Diode Component - J Tech Photonics, Inc.