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Using high-performance ultraviolet laser (intracavity frequency doubling technology + TEC refrigeration technology), the laser beam quality is superior, bringing users a delicate and beautiful marking effect; Laser beam base film, short pulse width, high peak power, high repetition frequency, small heat affected area, avoid deformation, damage or scorching of the processed material, and high yield; 355nn output wavelength, high photoelectric conversion rate, beautiful engraving effect, good marking effect, good touch feeling, and strong anti-counterfeiting;