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Focusable 450nm 2W 2000mw NDB7875 Diode Blue Laser Dot Module W/Driver Out+TTL 12V Wood Cutting/Engraving + Adapter: Amazon.com: Industrial & Scientific
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2W 450nm 2000mw Focusable Blue Laser Dot Diode Module w/TTL 12V Cutting + Adapter: Amazon.com: Industrial & Scientific
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