LC blade conventional products for paper manufacturing industry include blade for cutting rest concreted paper pulp, separating blade in pulp period, all kinds of scraper in coating period and circular rewinder cutting blade, slitter blade, crossing-cutting blade in final processing period. Among them, the lcknife circular slitting blade which used in processing paper for daily use is most popular in the market, like cutting blade, punching blade, rolled paper slitting blade and pipe cutting blade.