SF208A material is the product material number of Zhejiang Kete Auto Fittings Co., Ltd. In the selection of materials, high quality acrylic fibers and composite materials with stable properties are used as the skeleton materials of products. Various mineral materials with good stability and resin mixtures with high wear resistance are added to make scientific proportions. The friction coefficient and wear rate are effectively combined. The separation is thorough and the smooth and comfortable transformation is suitable for all kinds of car systems.