Submarine oil-transportation monolayer heat-insulating pipe joint and processing method thereof
The invention discloses a submarine oil-transportation monolayer heat-insulating pipe joint which sequentially comprises a steel pipe, an anticorrosive heat-shrinkable layer, a filling layer, a mould layer and an external coating layer from inside to outside. The filling layer is made of polymer hol...
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Format: | Patent |
Sprache: | chi ; eng |
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