The material is EPDM which is imported from DuPont Company in America. Our products have good charaters such as anti-aging, anti-heat, anti-cold, good flexibility, anti-compression deformation. All our products are strictly inspected. We passed the standard of ISO9001:2000 in 2007. our products have exported to more than 10 areas and courtries including Europe, America, Canada, Africa, Paskistan, Singapore and so on.