... pipe1504.5500175 The main products 1,Concrete pump pipe :ST52 concrete pump pipe , 45Mn2 Wear-resistant pipes, Twin wall pipes ,Reducer , tee ... placing boom series.3, Concrete pump truck fittings : Wear plate and wear ring, S valves, Concrete pump piston , delivery cylinder ... ,.ect4: Concrete pump clamp : DN80, DN100,DN125,DN150 Casting pipe ...