| 摘要 |
<p>The present invention relates to a cast formed part (1), especially a part of a tube for the drainage of buildings, comprising a marked area (7) arranged on the outer side of a wall (5), characterized in that a cast bead (9) extending longitudinally in a raised position on the outer side of the wall area with respect to the marked area (7) fully surrounds said marked area (7) in a substantial manner. The wall (5) is of circular or oval cross section. Each tangent to the marked area (7) surface intersects the cast bead (9) in two points. Thickness (d3) of the wall (5) inside the marked area (7) is substantially equal to or greater than thickness (d2) of the wall (5) outside inside the marked area (7). The marked area (7) has substantially flat surface. A brand label is applied, particularly adhesively bonded to said marked area (7). A sealing region (3) for connecting with another cast formed part (1) is performed on the cast formed part (1), wherein said sealing region (3) is arranged at a certain distance from the cast bead (9). The invented cast formed part (1) is made of cast iron.</p> |
