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实用新型
CN203880251U PVC实壁螺旋消音排水管 有权

PVC实壁螺旋消音排水管
摘要：
本实用新型公开了一种PVC实壁螺旋消音排水管，它涉及一种水管。它包括PVC外管、橡胶中管、倒流螺旋筋、网孔管，PVC外管内设置有橡胶中管，橡胶中管内设置有倒流螺旋筋，橡胶中管内还设置有网孔管；所述的橡胶中管粘贴在PVC外管内壁上；所述的倒流螺旋筋呈直线斜向橡胶中管内壁上设置。本实用新型结构简单，噪音小，实用性强。
摘要（英）：

The utility model discloses a PVC solid wall spiral noise-reduction drainage pipe and relates to a water pipe. The PVC solid wall spiral noise-reduction drainage pipe comprises an outer PVC pipe, a middle rubber pipe, a backflow spiral rib and a mesh pipe. The middle rubber pipe is arranged in the outer PVC pipe, the backflow spiral rib is arranged in the middle rubber pipe, the mesh pipe is arranged in the middle rubber pipe, the middle rubber pipe is stuck to the inner wall of the outer PVC pipe, and the backflow spiral rib is obliquely arranged on the inner wall of the middle rubber pipe in a linear mode. The PVC solid wall spiral noise-reduction drainage pipe is simple in structure, low in noise and high in practicability.

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