| 摘要 |
PROBLEM TO BE SOLVED: To provide a natural ore bathhouse which does not have restrictions in the place or the size, and also, of which the structure is simple, and by which a plurality of effects can be obtained by one time of bathing. SOLUTION: A natural ore layer 7 is formed by thoroughly laying marble 71, tourmaline 72, "iou-seki" 73 and radium ore 74. The natural ore layer 7 is heated from the lower side by piping 51 in which hot water circulates. When a bather lies on the heated natural ore layer 7, the bather can simultaneously obtain the effects of a plurality of kinds of these natural ores. COPYRIGHT: (C)2006,JPO&NCIPI
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