Feb 10 , 2021
355nm UV laser marking food packaging QR code production date
355nm UV laser marking food packaging QR code production date During this special Spring Festival, many people stopped visiting or gatherings. However, the family has to live the life of firewood, rice, oil, salt, ginger, vinegar and tea. We still have to go to the market to buy vegetables and go to the mall to prepare dry food, so we still have to face the problem of how to choose products...
view more