machine acid filling bushes 1.Imported EPDM material 2.All sizes 3.Rubber seal,acid-resistance 4.OEM/ODM serve machine acid filling bushes 1.Appling for ... 2. HNBR, NBR, Silicone, EPDM, VITON, CR, etc are available.3. The color could be chose.4. Compliance for the ISO9001 ... storage battery,UPS battery,Motorcycle battery,E-bike battery acid filling machineHardness: Shore A40,50,60,70,80,90Color: black ...