In recent years, UV laser marking machine has been widely applied into different industries.More and more people has accepted it as a necessary machine in their daily life, Through this passa

The laser is a new source of light in the sixties of the 20th century. It has the characteristics of good directionality, high brightness, good monochromaticity, and high energy density. The

Since the outbreak of the epidemic, masks have become a daily necessity at this stage. However, the huge demand gap has caused some illegal suppliers to take advantage of it, and a large numb