(1)rubber gasket for the disposable syringe (2)produced according to the YY/T0243-2003. (3)The size contains 1 ,2.5 ,5,10,20, 1)rubber gasket for the disposable syringe (2)produced according to the YY/T0243-2003.(3)The size contains 1 ,2.5 ,5,10,20we could produce the nature/Isoprene rubber gasket in any size as your requried rubber gasket for disposable syringe