... of material that semi-metallic, ceramic and metallic are for your choice. 3.Product image 4.About usOur ... company has been in this line of business for many years and enjoys high international prestige. We ... s about 4,000,000 sets for car and 1,000,000 sets for heavy vehicle or engineering vehicle. ... than 70 countries in America, Europe and Asia for their good quality and performance and our firm is ...