| 摘要 |
A core for use in the casting of slab-shaped concrete elements with longitudinal core holes is assembled from a base body 1 and at least one removable raising part 2. When changing to the casting of elements with a different core hole cross section, only the raising part 2 needs to be replaced (or removed), while the base body 1 can remain in place in the concrete placing unit. <IMAGE>
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