Portuguese laser company buys RFH ultraviolet green laser to replace the original light source   The research and development of RFH ultraviolet lasers and green lasers has gone through more than ten years. During the long research and development, the research team has exhausted their efforts and has also carried out day-to-day refurbishment of the details that appear. Among them, 355nm ultraviolet laser and 532nm green laser have received more customers' inquiries.