| 摘要 |
<p>PURPOSE: To provide a woody cement plate capable of increasing the holding power of a nail driven into the inside of the plate. CONSTITUTION: Many woody chips 2, 3, 4 are mixed with a cement paste 6. Then the woody cement plate 1 is formed by mixing many elastic chips 5 consisting of a synthetic resin such as an ethylene-vinyl acetate copolymer so that the chips 5 coexist among the woody chips and the cement paste. In such a case, the mixing ratio of elastic chips 5 to the woody chips and the cement paste is defined as 3-15wt.%.</p> |
