1.Auto timing belt main type ZA, ZB, MR, RU, RS, RPP, ZAS 2.Material:CR,HNBR Detailed ... Product Description auto rubber timing belts 1.Auto timing belt ... main type ZA, ZB, MR, RU, RS, RPP, ZAS 2. ... belts1.Auto timing belt main type: ZA, ZB, MR, RU, RS, RPP, ZAS,ZBS, YU, S8M and STD2.Material ...