... .Material:silicone,NBR,NR,EPDM,VITON,PU. Custom Silicone Rubber Seals.We are a lead manufacturer of custom molded silicone rubber parts and plastic ... request.1. Material: Silicone, NR, NBR, EPDM, SBR, Nitrile, Viton, BUAN, CR, IIR and so on.2. Size ... blue, red and so on.If any custom molded rubber parts, silicone parts, plastic parts, please feel free to contact us. Custom Silicone Rubber Seals