Germany customer buy 355nm uv digital source module Marking Production Date on Glass Bottle

Samples of 10w uv laser marking machine projects – engraving production or expired date on glass bottle, perfume bottle and other cosmetic products.  uv laser marker for names, logo, qr code, pattern on more metal materials.

what is 10w uv digital source module: https://www.rfhtech.com/s9-uv-laser-new_c3