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STANDING TYPE FOR DEEP SEA
For deep sea more than 10m, in many cases, it is effective to use 2 separate curtain systems. One curtain is hung down from sea surface and another curtain stand on sea bottom. By this combination of 2 curtains very deep sea like 20m depth can be covered and protected effectively.
FRAME TYPE FOR GRAB DREDGER
For local protection during grab dredging, silt curtains are hung down from square shape steel pipe frame in which grab works.When grab dredger moves, curtains are usually tucked up by winch.
