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Jiangsu Henglong Underwater Engineering Co., Ltd
No. 156, Qinnan Zefu North Road, Yandu District, Yancheng City
Underwater blockage of drainage pipes
Inspection well mouth sealing - Water Ghost Diving Sealing Construction Company
Underwater sealing of drainage pipes
Installation of underwater pipeline sealing airbags
Underwater sealing construction by divers
Diver masonry without water leakage operation - frogman underwater sealing construction team
Construction units for underwater pipeline blockage and diving blockage