| 摘要 |
<p>Hollow corner bricks, joined between them along horizontal surfaces with the tongue and groove joints, have the shape of a geometrical body resulting from pervading of the two parallel walls (1 and 2) of the hollow brick, linked by the batten plates (3), with the cylindrical ring (4), on whose upper and lower surfaces the convex ring (8) or the concave ring (9) are located, respectively, and the two rings (8 and 9) form the joint of the ring-form part of the hollow bricks, allowing for the mutual angular positioning of the bricks with angles ranging from the 0° to 90°.</p> |
