... 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 on.2 ... : Black, white, Transparent, gray, green, yellow, blue, red and so on.If any custom molded rubber parts, silicone parts, plastic parts ...