... life 4.OEM & ODM supported Tungsten carbide inserts factory Item name Cemented carbide inserts, tungsten carbide tipmaterial tungsten carbidesurface treatment mirror ... L/C,D/P,O/A. etc… All Milling Inserts according to your refference.1.The Types of the Milling ... Milling InsertsTBG2025 is for cast Iron,Black Coated Carbide Milling Inserts,TBC2025 is for Steel,Black Coated Carbide Milling InsertsTBC2015 ...