... Rubber seal,acid-resistance 4.OEM/ODM serve machine acid filling bushes 1.Appling for lead acid storage battery,UPS battery ... storage battery,UPS battery,Motorcycle battery,E-bike battery acid filling machineHardness: Shore A40,50,60,70,80,90Color: black ... Spec.Standard packing: a. plastic bag inside with barcode; b. carton outside, 40*40*28 cmNot-standard packing: follow customers' requirement