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