Concrete Pump Cleaning Ball size from 1''-8'', soft, medium, and hard available, usding for Schwing, PM, Kyokuto, Cifa, Sany, NameConcrete Pump Cleaning BallsizeDN25 ... the pipeline of concrete pump and concrete pump truck in construction workService Brand Schwing, PM, Kyokuto, CIFA, Sany, Zoomlion, and so on Concrete Pump Parts Rubber Sponge ...