... caps 1.Imported EPDM material 2.All sizes 3.Rubber seal,acid-resistance 4.OEM/ODM serve E-bike battery rubber plug ... for lead acid storage battery,UPS battery,Motorcycle battery,E-bike battery 2. HNBR, NBR, Silicone, EPDM, VITON, CR, etc are ... ; d.Anti-aging, anti-radiation, good flexibility, good elasticity; e.Excellent resistance of acids, aliphatic hydrocarbons, aromatic hydrocarbons and animal ...