A grab is a mechanical device with two or more jaws (also called clamshells), used to pick things up or to capture things. Some types include: Roundnose grab Clamshell grab Orange-peel grab in Dutch they are called poliep grijpers = “polyp grabs”. There are different ways of open/close the grabs: electro-hydraulic / diesel-hydraulic mechanical by rope(s) (1-rope, 2-ropes, 3-ropes, 4-ropes) Grabs can be used for: dredging bulk handling (e.g. loading/unloading ships) salvage (e.g. ship-wrecks, oil)

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