After Mr. Huang visited RFH's production line and product demonstration, he immediately decided to cooperate with RFH. Mr. Huang said that RFH's 3W5W10W UV laser is exactly what they need, because this device can accurately print information on the edge of food packaging bags, and even if the space is narrow, as long as it is set up on the computer, there will be no spraying mistakes. Condition. Moreover, the persistence of laser spraying information is not affected by the external environment, and there will be no discoloration or lightening.