Low Power Ultraviolet UV Laser Source 355nm for Colored Plastic Marking Ultraviolet UV Laser Source 355nm Marks White on Colored Plastics     Plastics can be seen everywhere in our lives, and colored plastics have also become the most widely used materials, whether in beverage bottles, handicrafts, or building materials. In the past, marking on colored plastics usually used the ink jet coding method, but this method is prone to pollution and the marking effect is not good, so the RFH Ultraviolet UV Laser Source 355nm has a stage to play.