[Features] · Excellent thermal insulation and condensation prevention properties. The inner surface of the box has been treated with a special coating that contains a substance for water absorption and diffusion, as well as a substance for waterproofing and heat reflection, reducing condensation to zero. *Provided that the coating surface temperature is 5°C or more. · The special coating does not contain any volatile substances such as formaldehyde. The special coating is non-flammable. · The work processes are exactly the same as for existing boxes. The special coating has been applied to the inside of the box, but the outside is the same as for existing boxes, so installation of attachments, etc., is unchanged. In addition, while up until now there was a need to have enough space to accommodate the thermal insulation materials, etc., this space is no longer a requirement. · The box is a JIS standard product treated with a special coating. (The cover is a JIS standard product.)