... bungs has excellent voice resistanceApplication of rubber bungs: Rubber bungs are applied in all kinds of cars, machinery, home appliance, ... pipe,waterspout,machine,valves, industry and more.Factory of rubber bungs' advantages Over15 years export experiences. 6 ... , convenient transportation.Our rubber bungs advantages: 100% pure rubber material Pass IS09001,TS16949,RoHS,SGS certificates Customized ...