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 ... , red and so on.If any custom molded rubber parts, silicone parts, plastic parts, please feel free to contact us. Rubber D Ring,V Ring