The excavator grab is shaped like a shell, and the hydraulic cylinder is used to drive the grab to open and close like a shell to grab the material, or the rope roll will cut into the material vertically according to its own weight , Ni, gravel and other loose materials , especially suitable for excavation or loading on one side of a ditch or restricted space. The excavator dragline is in the shape of a dustpan with a tooth base plate and bucket teeth.
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