Interrupted thread type supercritical fluid foaming sealing in-situ opening and closing device
The invention provides a discontinuous thread type supercritical fluid foaming sealing in-situ opening and closing device aiming at the defect that the installation and operation space of a manhole sealing end of supercritical fluid foaming horizontal tank equipment is large. Rapid opening and closi...
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Format: | Patent |
Sprache: | chi ; eng |
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