Anti-permeation monitoring device and method for oil tank of gas station
The device comprises an oil storage ball which is located in the oil tank and matched with the inner wall of the oil tank, the oil storage ball is provided with an oil inlet hole matched with an opening of the oil tank, the wall of the oil storage ball is of a double-layer structure, and the outer w...
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Format: | Patent |
Sprache: | chi ; eng |
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