Base structure of round-sky and square-earth crane of semi-submersible drilling auxiliary platform
Ship bottom telescopic push auxiliary mounting structure and using method
Anchor mooring structure of semi-submersible drilling auxiliary platform
Unit module hoisting anti-deformation structure and flexible binding method
Mounting structure and mounting method for ship bulbous bow in floating dock
Installation method of propeller base of deepwater dynamic positioning crude oil conveying device
Large cable mooring device with five-connecting-rod quick release mechanism