405 / | HD | HYDRAULIC AND EARTH ENGINEERING |
52 | DF | FLUID CONTROL, TREATMENT, OR CONTAINMENT {7} |
60 | DF | .~ Floatable matter containment {4} |
63 | .~.~ Floating barrier {5} | |
64 | DF | .~.~.~> Submergible |
65 | DF | .~.~.~> With means to seal space between barrier and fixed structure |
66 | DF | .~.~.~> With barrier storage or deployment feature {2} |
70 | DF | .~.~.~> Having joint detail {1} |
72 | DF | .~.~.~> With reinforcing feature |