| 摘要 |
<p>An incombustible board made of a corrugated cardboard is disclosed, which comprises an incombustible resin layer which is formed in such a manner that an incombustible resin liquid having incombustible agent of 5~20weight% is coated with a constant thickness on the surfaces of the upper plate and the lower plate of the corrugated cardboard formed of a wrinkle corrugated plate and the upper and lower plates engaged at an outer side of the same and is dried.</p> |
