405nm 500mW Focal Adjustable Laser Engraving Module with TTL/PWM Modulation

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High quality violet laser engraving module Key Selling Points:

· 405nm-500mw Fineness beyond hair

· High-accuracy

· Competitiveness price
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For more, please go to:
https://www.alibaba.com/product-detail/ ... 71d2BUuB1X