| 摘要 |
The door shuttering is used to produce door openings in large concrete slabs. In order to facilitate shuttering removal, two wedge-shaped shuttering parts (2, 3), bearing against each other and divided approximately in one diagonal, are provided. One shuttering part can be moved relative to the other and be compensated for in terms of weight by springs (11) or hydraulic assemblies. As a result, the shuttering can be easily removed without any clamping action on the concrete which has not yet completely set. <IMAGE>
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