Expansion cylinder with limiting device
The utility model belongs to the technical field of hole plugging. The problem that an existing expansion cylinder sinks during plugging is solved. The utility model discloses an expansion cylinder with a limiting device. The expansion cylinder comprises an expansion cylinder body and a limiting dev...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
26.06.2020
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Subjects | |
Online Access | Get full text |
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