Plastic laser machine, also known as plastic laser marking machine, uses a beam of light to create permanent marks on different substances. The reason why plastic laser machines can achieve the effect of engraving permanent marks is that they use the light energy of the laser to cause some physical or chemical reactions on the surface of the object, or burn off some substances on the surface to achieve the engraving effect. Common laser machines include plastic fiber laser machine, CO2 laser machine, and UV laser machine.