| 摘要 |
PROBLEM TO BE SOLVED: To provide a metal-made container raising durability by surely preventing the dew condensation in the inside of the container formed by welding, etc. of a metal plate even if it is in a state to lower an outside air temperature to prevent the occurrence of corrosion inside of the container accompanied with the condensation. SOLUTION: In the metal-made container formed by successively providing a semi-sphere shell-like roof section to an upper part of a cylindrical body and holding a temperature of the inside at least an open air temperature, a fan producing an air current flowing along the inside of the roof section is provided to the inside of the metal-made container, and it is so constituted that a temperature of the roof section is made to rise by the air current from the fan. COPYRIGHT: (C)2006,JPO&NCIPI
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