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Footpath paving stone has square top with profile containing peaks and troughs
Footpath paving stone has square top with profile containing peaks and troughs
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机译:行人路的铺路石具有正方形的顶部,轮廓包含峰谷和波谷
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摘要
A paving stone for e.g. footpath is of roughly square planform and has a profiled upper surface with peaks and troughs. Also claimed is a process to fabricate the profiled stones.
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