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thin walled tubular body for filling cavities in the creationde concrete building components such as slabs.
thin walled tubular body for filling cavities in the creationde concrete building components such as slabs.
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机译:薄壁管状体,用于填充混凝土等建筑构件中的空腔。
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摘要
The filler, which is used in an assembly, formed by an iron reinforcement cage, of similar fillers, is reinforced by internal discs, which completely block the cavity, at each point at which it is crossed by an iron bar of the cage. Pref. these discs are of polystyrene foam.
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