... 1 sound insulation 2 uv 3 safety 4 good quality JH - ZNT - 80 character wine, glass display ... this characteristic, adjustable optical glass is widely used in high-grade office, computer room, medical institutions, commercial display, ... 60 °C 2. Environmental humidity: 85% or less (non-condensing) 3. Not long in the strong ultraviolet ray ... projection, character wine, glass display with the high quality