High-strength alloy cast iron is selected as the main material. This material has excellent mechanical properties, capable of withstanding the enormous forces generated during braking under various complex road conditions for trucks. The addition of alloy elements further enhances the strength, hardness, and heat resistance of the material, ensuring that the brake discs do not deform or crack during long-term, high-intensity use, and can effectively resist thermal fatigue caused by high temperatures, extending their service life. Specifications: Suitable for various vehicle models.