| 摘要 |
PROBLEM TO BE SOLVED: To give functions such as deodorization, antibacterial properties and the like, which are safe due to nature-oriented wooden material employing natural tree such as Japanese cypress, Japanese cedar or the like. SOLUTION: This material is a skeleton 2 having a peripheral surface 2 made of a curved surface formed by cutting and both edge faces 3 formed by cutting with a saw blade. In addition, a through hole 5 is bored in the skeleton 2. Further, the skeleton is made into various shapes such as a barrel one obtained by forming both end portions of the skeleton 2 into small diameter portions or the like. |
