... quality food grade silicone material, other rubber material also available, such as NR, NBR, CR, EPDM etc. 2)Color ... your logo.5) We are a professional silicon rubber products manufacturer with 14 years in China. ItemRubber ... will be avaliableCertificationISO9001-2008,SGS,FDA,ROHSApplicable material: SIR, NBR, CR, NR, SBR, EPDM, FKM, IIR, BR ... me at any time. Alkali resistance NBR silicone rubber parts