355nm uv solid state DPSS lasers marking systems for  Code Printer marking text, date, number, barcode, qr code, logo on the plastic products, for example: plastic bag, plastic cup, PET PVC maerial. The 355nm uv solid state DPSS lasers code printer and online automatic batch printing machine also support printing on plastic bottle with High -precision effect. 

S9 Series 3W 5W 10W UV Laser: https://www.rfhtech.com/s9-series-3w-5w-10w-uv-laser_p9.html