... 275-320nm is good for body's mineral metabolism and Vitamin D forming, this wave is good for ... drinking water,pure water, medical, electronic, air sterilizing and cleaning, sewage treatment project,etc. It is one of ... material, NEG glass, Nichia phophors, Toshiba nickel electrode and Italian T-Hg in solid-state,our CCFL manufacture ... , by air, by sea are supported. Factory Tour 2013 hot sale uv lamp