Inner plugging sleeve for building electromechanical pipeline
The utility model discloses an inner plugging sleeve for building electromechanical pipelines, which comprises a wall body, a pre-buried pipeline is mounted in the wall body, a sealing cover is mounted at one end of the pre-buried pipeline, a sealing mechanism is arranged between the sealing cover a...
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Format: | Patent |
Sprache: | chi ; eng |
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