Search results for 'blue laser'
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1. For Jewelry Testing, we had checked
2. Jade and Brazil tourmaline Crack testing
3. Diamond, Ruby and saphire cutting surface testing
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445nm 455nm 450nm <5mW Blue Laser Pointer Pen
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OD4+ LED All Wavelength Lighting Protective Safety Glasses Goggles
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445nm 455nm 450nm <5mW Blue Laser Pointer Pen