... : 14.9g/cc above; 3.Bending strength: 1700; 4.High wear-resistant. high precision tungsten carbide ball: 1. material : WC 94%,Co 6% We ... 2. precision : G10,G20,G25, G100, 3. features : high hardness , high precision , high antirust capability, high wear-resistant capability. 4. Application: grinding, hardness examine ...