Our products are made of rock wool or asbestos, non-asbestos, semi-metal, ceramic fibers, and other materials. Our products meet with the GB5763-1998 Standards. They are with the features of environmental protection, no noise, long usage life, and being harmless to duality. These products are suitable for being used in different vehicles in Japan, Europe, the USA, the Middle and East Asian areas, as well as Southeast Asian areas. Also.