The semi-metallic brake pads quality not to be missed, the market price of the semi-metallic brake pads. Brake pads brake lining) usually by a steel plate, adhesive insulation and friction blocks, steel coating to rust-proof coating process using the SMT-4 Temperature Tracker to detect the temperature distribution of the coating process to ensure quality . Which the insulating layer is composed of heat transfer material, the purpose of the insulation. Friction block friction materials, adhesives, squeeze on the brake disc or brake drum brake friction, so as to achieve the vehicle deceleration braking purposes. Due to friction, the friction block will gradually wear Generally speaking, the lower the cost of brake pads wear faster. The friction material after the timely replacement of brake pads, otherwise the plate and direct contact with the brake discs will eventually lose braking effect and damage to the brakes.