DE JI 7-400T full-rotating Crane Barge

Underwater salvage refers to the process of salvaging flooded objects or removing navigation obstacles in channel and port waters.Underwater fishing design survey. diving. Jam. Underwater blasting. Un

What is the treatment principle of sunken ship salvage underwater engineering? The basic principle of underwater engineering is chemical grouting. Chemical grouting is to inject the pressure polymer m

(1) Investigate the landscape image, water depth, water temperature, flow rate and other environment of the operation area. It can be operated only when the wind force on the water surface is less tha