... inner side of For variousand with special diamond brazing technology, diamond is firmly brazed onto the center, which ... 11Height: 50mmGrit: Coarse, Medium, FineSuperiorities of vacuum brazed technology:1, Good coherence It owns a strongly good coherence ... materials and advanced manufacturing technology,which could be producted efficiently,goingtoscale and steadil.Jiangyin Duoling Tools Co.,Ltd is ...