... EPDM, ect.6. QUANLITY a. Ozone and chemical resistance b. High temperature resistance c. Excellent weather resistance d. ... Yingyu Co.,Ltd. is a leading designer and manufacturer of seals and rubber products with over 20 years ... seal, u ring, rod seal, piston seal, rubber cord, etc. The molded rubber products include: rubber grommet, ... research and development by us. EPDM Rubber Cord / Rod manufacturer