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Sewer pipe with liquid permeable mantle, especially for removing rain water, has mantle made from liquid impermeable material and containing holes
Sewer pipe with liquid permeable mantle, especially for removing rain water, has mantle made from liquid impermeable material and containing holes
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机译:带有液体可渗透罩的下水管,特别是用于去除雨水的管道,其罩由液体不可渗透的材料制成并带有孔
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摘要
The pipe mantle (2) is made from a liquid-impermeable material and has at least one hole (9) in it. An Independent claim is also included for an arrangement of these pipes fitted together.
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