| 摘要 |
<p>A method is provided for continuous production of gypsum boards which comprises forming a laminate of gypsum slurry between a facing paper (111) and a backing paper (125) and continuously forming a longitudinal recess (203) along the side edges of the laminate surface, and a lateral recess (205) at spaced intervals on the laminate surface thereby producing a four-tapered edge gypsum board (200) which is uniquely suitable as a material of construction in the building industry.</p> |
