1-Material:Low metallic,semi-metallic,non asbestos organic,ceramic 2-Guarantee: 30,000KM Material: Low metallic, Semi-metallic, Non asbestos organic, CeramicProducing Standard: QC/T-564, GB5763-1998Friction factor: 0.36~0.40High braking performance, low noise, pollution-free and long service lifeGuarantee: 30,000KM Brake Pad