Foam Natural Rubber Ball 1.Size: 50-200mm 2.ISO 9001:2001 3.Color: Orange 4.Material: Natural Rubber Foam Natural Rubber Ball Sponge Ball SpecificationsNameCleaning Sponge BallSize (mm)DN 50/80/100/125/150/180/200Size (inch)DN 2”/3”/4”/5”/6”/7”/8”TypeSoft, Medium Soft, FirmColorOrange, Yellow, Blue, Green, etc.ApplicationCleaning the pipeline of concrete pump and concrete pump truck in ...