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YG15 Tungsten carbide bushings , YG25C TC bushes Brief Introduction of Tungsten Carbide bushings Recommened grade:YL90.1, YL90.2, YL90.3, YL90.4, YL90.5 density: 13.0-14.5 g/cm3 HRA: HRA 81-85 T.R.S: ...