Core body for concrete has body sides facing concrete embossed to imprint load limit data into concrete during casting.

摘要

The core body sides (2) facing the concrete carry textual or figure information (8) to impress these data in the displaced sides of the opening in the concrete. The data-carrying sides form negatively embossed printing blocks with the data-marked points standing higher (7) than the remaining surfaces. These raised parts (7) are shaped to reproduce the data information. The two sides (2) bulge out as semicircles. After casting, the core part is raised by long rods (6).