1. Point contact: There is point contact between adjacent layers of steel wires in the strand. Except for the central steel wire, the diameters of the steel wires in each layer are equal, and the strands are formed by layered twisting.
2. Line contact: There is linear contact between adjacent layers of steel wires in the strand, and the strands are made of steel wires of different diameters twisted at one time.
3. Surface contact: There is surface contact between adjacent layers of steel wires in the strand.
4. Point and line contact stainless steel wire rope: There are two contact forms of point and line between adjacent layers of steel wires in the strand. Strands are twisted in stages from steel wires of different diameters.
5. Special-shaped strand stainless steel wire rope: Special-shaped strand stainless steel wire rope is named after its strand cross-section is triangular, oval or fan-shaped.
6. Steel wire rope for bridge: A stainless steel wire rope made by galvanizing the surface of the steel wire (or drawing it after galvanizing) and then twisting it.
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