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405nm 500mw VioletBlue Laser Diode Engraving Module TTL Focusing Head 3D Printer | eBay
12V 24V 2 Phase Hybrid Linear Step Stepper Stepping Motor NEMA 17 23 34 with Planetary Gearbox / Brake / Encoder / Integrated Driver for 3D Printer Xyz Laser - China Hybrid
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450nm 5.5W Laser Module Adjustable Focal Length Laser Engraving Head High Speed Laser Engraver Cutter 3D Printer CNC Router Laser Module for DIY Craft | Fruugo UK