Buoyancy or ballast means Pressure equalising or adjusting
Lift bag with automatic gas volume regulation
#2Tether for an inspection vehicle
#3Air, sea and underwater tilt tri-rotor UAV capable of performing vertical take-off and landing
#4Apparatus for shellfish aquaculture
#5Flotation system for offshore power generation platform
#6Apparatus for shellfish aquaculture
#7Buoy for the installation of underwater equipment
#8Floating construction