High-flow reinforced spiral pipe
The utility model discloses a high-flow reinforced spiral pipe which comprises a pipe body. A plurality of spiral ribs are arranged in the pipe body; the thread angle C of the thread rib ranges from 15 degrees to 55 degrees; the number of the threaded ribs in the pipe body and the distance between e...
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Format: | Patent |
Sprache: | chi ; eng |
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