machine acid filling bushes 1.Imported EPDM material 2.All sizes 3.Rubber seal,acid-resistance 4.OEM/ODM serve machine ... battery 2. HNBR, NBR, Silicone, EPDM, VITON, CR, etc are available.3. The color could be chose.4. Compliance for the ... requirement.NBR,EPDM,FKM,ACM,IIR,Silicon rubber etc. are available.Material usage is based on the final product condition.Packing ...