Relative position detection mechanism in plugging process of pipe-in-pipe type thermal insulation pipe (Chinese)
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2021
- Patent / Electronic Resource
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Title:Relative position detection mechanism in plugging process of pipe-in-pipe type thermal insulation pipe
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Additional title:“管中管”式保温管封堵过程中相对位置检测机构
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Patent number:CN112643954
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Publication date:2021-04-13
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Type of media:Patent
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Type of material:Electronic Resource
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Language:Chinese
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