| 摘要 |
The distance device comprises an upper support surface (17) for a top reinforcement rod (23), and a lower support surface (6) for a bottom reinforcement rod (229. It also has a circular base for resting against the ground. A hollow body (3,8) stands upwards from the circular base, and contains the support surfaces for the reinforcement rods. - Each of the support surfaces are formed by bottom parts in two recesses (5,16) on opposite sides of the hollow body, and can be opened at their ends for insertion of the reinforcement rods. |
