91丨精品丨蝌蚪丨白丝jk_色多多www視頻在線觀看免費_亚洲一区二区免费电影_一级二级毛片_欧美日韩人成综合黄色_中国女丰满熟妇厨房伦_97久久超碰国产精品无码_很污的视频在线观看爱操_亚洲激情春色_欧美精品双插重口在线播放

Bearing working condition in cold forming machine industry is bad with the big cycle impact load, poor lubrication condition, many impurities produced during operation, and easy wear and tear. Because of the high cost of emergency maintenance, customers have higher requirements for bearing wear resistance, reliability and working life. TWB special series bearings for cold forming machine industry use high quality raw materials, special customized retainers, optimized bearing design, and special heat treatment process. The TWB bearings have the characteristics of high load, wear resistance, impact resistance and long life, so they are the best choice for import substitution.