Features: 1. The unique copper-based metal has high copper content and is resistant to wear. 2. Strong high-temperature load capacity, adaptable to various climates and environments. 3. Short running-in period, strong braking force, and reduced wear on disc TONGLI, permanent and other brake calipers (Shanghai permanent bicycle company) Custom processing no material semi-metal Applicable models TONGLI, Permanent Equal Brake Caliper Origin China article number P00041-Y