Users need high-quality wire ropes, which are wire ropes with long service life and highly stable and reliable quality.The main reason for the failure of the wire rope used in the atmospheric environment is fretting fatigue，At present, the world's wire rope field to take prevention and control measu

The crane is a multi-action lifting machinery that lifts straight and carries heavy objects horizontally within a certain range.Some of the operation characteristics of the crane are intermittent movements, that is, the corresponding organization of reclaiming, moving, unloading and other actions in

With the extensive use of lifting equipment, our work has become more and more relaxed. However, due to the existence of factors such as careless operation and non-standard handling of workers, it is very easy to lead to some accidents