405nm 450nm 190-490nm Violet Engraving Laser Protective Glasses
Protection wavelength: 190--490NM. 405nm 450nm 190-490nm Violet Engraving Anti Blue Light / Blue Violet Laser Protective Glasses. Typical wavelength: 266NM, 355NM, 405NM, 445NM, 450NM, 473NM, 475NM, etc.