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There are tree different types off silt protector, hanging, standing which also can be used in combination. For deep sea more than 10m, 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.;Hanging Type. The third type is used for local protection during grab dredging, silt curtains are hung down from square shape steel pipe frame in which grab works. |






