Concrete Pump pipe Spare parts Cleaning Ball Price Material: Sponge / Rubber Usage: Cleaning concrete pump and pipe Served Brands: Putzmeister,Schwing,Sany,Zoomlion Types: Soft,Medium soft,Hard. Color: Yellow,Green… Name Description Pump pipe Cleaning ball 2″ soft/medium/hard 3″ soft/medium/hard 4″ soft/medium/hard 5″ soft/medium/hard 6″ soft/medium/hard ball for cleaning concrete pump pipe Product name Concrete pump pipe cleaning sponge ball Type Soft Medium soft Hard Material High quality sponge Natural rubber Size DN50 2inch DN80 3inch DN100 4inch DN125 5inch DN150 6inch Brands Putzmeister,Sany,Zoomlion,Schwing,CIFA,etc Other parts supplied Concrete pump s valve Spectacle wear plate