In addition to protecting the jaw crusher and extending the service life, the liner is more important because the shape of its working surface directly affects the grinding efficiency and capacity, the energy consumption of the grinding, the loss of the medium and the liner, and the Dynamic distribution, etc. Therefore, the company has made great efforts in the wear-resistant materials, structural form, and dense loss of the jaw crusher lining board, and strives to allow users to obtain more economic benefits with a small capital consumption. The jaw crusher's fixed lining (tooth plate), moving jaw lining, and both sides of the lining are very easy to wear. After severe wear of the lining, the product size will increase. It is not suitable to replace the initial wear. At this time, replacing the lining plate will cause serious waste of resources. At this time, the tooth plate can be used for jump shots, or two upper and lower heads can be used. The wear of the E plate is m