3W5W UV laser marks food packaging film RFH UV laser marking food packaging film production date with high-definition, anti-counterfeiting, high efficiency, using high-speed non-stop UV laser coding, can operate continuously and stably for 24 hours; it is also an environmentally friendly high-tech product, which does not cause damage to the human body and produce the environment hazardous substances. It has the characteristic of low cost, free maintenance, and zero consumables.