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person:("chen jinfeng")
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person:("chen linfeng")
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person:("chen xinfeng")
Overhead ground wire chain cable mixed type short-distance universal lifting device
Universal lifting device for ground wire of power transmission line
Simple short-distance lifting device for power transmission overhead ground wire
Anti-falling intelligent safety measure device for climbing transmission tower
Insect-imitating crawling robot device for arranging temporary anti-falling rope by climbing tower