1) In the process of rope making, the surface of the wire passing die and the wire pressing die is not smooth, and there are defects such as grooves, scratches, burrs, etc., which cause damage to the surface of the steel wire or rope strand..

There are many kinds of steel wire ropes, and the structure types are different. It can be classified according to the structure, twist method, shape, size, use, etc. these classification methods have been introduced by many people. 一、..