... 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 lead acid ... UPS battery,Motorcycle battery,E-bike battery acid filling machineHardness: Shore A40,50,60,70,80 ... resistance, aging resistance, high/low temperature resistance, acid/alkali resistance, weather resistance, abrasion resistance, voltage ...