摘要 |
<p>The object has a perforated body (1) including two base surfaces (4) and elongate openings (2) arranged perpendicular to each other. The openings include a linear extension and a cross-section in different shapes e.g. borehole shape. Large diameter of a circle (3), which is marked in the cross-section of the opening such that the circle does not overlap a separation wall, is not more than 40 millimeters. The body includes different shapes and sizes.</p> |