| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bincho charcoal(a kind of high-quality charcoal) which is capable of enhancing the usefulness for health thereof by increasing the flow contact area with water and air and is suited for cleaning and conditioning drinking water and air. <P>SOLUTION: Holes are bored nearly from the center or the sides of wood, thereby, the flow contact area of water and air is increased and the wood is carbonized, is cleaned, is sterilized, is packaged and is supplied to market. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
