Lin called S&A Teyu again and decided to purchase S&A Teyu CWUL-05 water chiller to cool Rofin 3-5W UV solid laser. Actually, President Lin had called S&A Teyu a month ago, expressing that he would like to purchase a water chiller to cool Rofin UV solid laser, and S&A Teyu recommended CWUL-05 water chiller with heating rod then.