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1	Wheel (cast steel, hot rolled)
2	Hook (single hook, double hook)
3	Rolled plate with steel wire rope (rolled from cast iron or steel plate)
4	Traveling wheel (cast steel)
5	Driving gear
6	Coupler (gear shape, cross head, springiness)
7	Anticreep device
8	Hoisting device for grabs (double jaw, wobbler)
9	Driver’s room
10	Traveling of gantry

1	Speed reducing device
2	Electric motor
3	Arrester
4	Gantry cable drum
5	Linkage Control Station
6	Center collector ring
7	Electric control for assembly
8	Safety limit
9	Steel wire rope
10	Lamps used for lighting

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