Virus detection kit for 355nm UV laser marking, traceability and anti-counterfeiting At present, nucleic acid testing is one of the main testing methods for diagnosing whether they are infected by the new coronavirus. As of June 10, 2021, there are 59 new coronavirus detection kits in my country that have been approved for marketing by the National Food and Drug Administration. At the same time, the detailed information and specific batch numbers of each reagent must be displayed very rigorously in its outer packaging box. To facilitate drug traceability. For the traceability and anti-counterfeiting of pharmaceutical reagents, laser marking technology plays a vital role. For this reason, the 5W ultraviolet laser for the S9 series launched by RFH Laser can provide a perfect solution for marking the new crown test piece, helping the world to fight the epidemic!