1.Tungsten carbide rings 2.High hardness 3. Good quality, fast delivery 4. ... steel die, etc. II. Kinds of tungsten carbide TF products: 1.Tungsten carbide nonstandard dies: like cold heading dies, battery dies ... etc. 2.Tungsten carbide wear parts: carbide rollers, carbide gauge, tungsten carbides inserts, carbide roll collar, carbide plug gauge, etc. III.Tungsten carbide products: carbide board, Bars ...