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Railway, in particular for use in the construction sector
Railway, in particular for use in the construction sector
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机译:铁路,特别是用于建筑业的铁路
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摘要
The invention relates to a web (1), in particular for use in the construction sector, with a flat sheet body (2). According to the invention, a material is contained in the sheet body (2) which automatically exits and / or swells in the case of a perforation of the sheet body (2) from the sheet body (2) for closing and / or sealing the perforation opening.
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