1.Rubber D Ring,V Ring,X Ring. 2.We are a lead manufacturer of Rubber D Ring,V Ring,X Ring. Rubber ... D Ring,V Ring,X Ring.1. Material: Silicone, NR ... , NBR, EPDM, SBR, Nitrile, Viton, BUAN, CR, IIR and so ... parts, please feel free to contact us. Rubber D Ring,V Ring