cemented carbide teeth: 1.Use 100% virgin raw material 2.ISO9001 3. For coal industry, etc 4.From state-owned company ApplicationRecommend GradeTBM cutterG215, G216, G210, G413, G211, YJ0, YJ0.1, YJ1.1, YJ2.1R, YJ2.2R, G508, G809, B30, B35, B40, B45Coal cutting bitsG215, G216, G210, G413, G212, G313, G510, G508, G809Oil well bitsG215, G216, G210, G413, G213, YG13C, YG15CMatrix of PDCG215, G216, ...