... pass 4. Short production cycle FDA No Flash EPDM, NBR, CR Viton Rubber O Rings Application Dynamic Seals FDA No Flash ... EPDM, NBR, CR Viton Rubber O Rings Application Dynamic SealsO-rings are donut ... professional at such O rings.. applicationStatic sealing. Dynamic Seals.materialEPDM, CR, NBR..Features:Making compound according to your requirement. No flash ...