Spraying device for macromolecular grouting material
According to the technical scheme, the spraying device for the macromolecule grouting materials comprises a spraying pipeline and a spraying assembly, the spraying pipeline comprises a corrugated hose, a connector and a pipe body, and the connector and the pipe body are fixed to the two ends of the...
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Format: | Patent |
Sprache: | chi ; eng |
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