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20W Optical Power Laser Engraver Head Kits 450nm 20W Laser Module for Laser Cutting

20W Optical Power Laser Engraver Head Kits 450nm 20W Laser Module for Laser Cutting
Specification:1.Wavelength:450nm2.Output power:20w3.Electric power: 80W4.Color:Blue  20W Optical Power Laser Engraver...