PE seven apertures in human head plum blossom communication pipe
The utility model discloses a PE seven apertures in human head plum blossom communication pipe in pipeline communication technology field, including the inner tube, outer wall of the inner tube is provided with the saddle, evenly be provided with the fixture block on the saddle, the saddle inner cha...
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Format: | Patent |
Sprache: | chi ; eng |
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