450nm 3500mw 3.5W high power CNC laser head 3P adjustable focus DIY engraving machine laser laser light with PWM fan

450nm 3500mw 3.5W high power CNC laser head 3P adjustable focus DIY engraving machine laser laser light with PWM fan
sku: 1005007002523919
$97.00
Shipping from: China
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