| 摘要 |
The element comprises a concrete block (2) containing spacer parts (3) secured to a grid (4) extending parallel to the corresponding side wall of the block, leaving a space between the grid and block. This space can be filled with e.g. clay to grow plants in. The rods used to form the mesh have a diameter of 6-12 (8) mm. Spacer parts protrude from two opposite sides of the block. |
