... Ceramic (NAO) | Low-Metallic | Semi-Metallic United Material Brake Pads is a pioneer in the design, development and manufacture of ... most cases better than original parts. Product Application: Automotive brake pads for Mercedes-Benz automobiles. Classes: A, B, C, ... coeficient: - Average: 0.38 | - Minimum: 0.35United Material® pads vs. competitors pads after a 17,000-mile vehicle test: United Material ...