ST52 Concrete Pump Placement Pipe with SK Flange Material:ST52, 45Mn2, 20#, ... parts in China, specialized in producing concrete pump delivery pipe, rubber hose, elbow, bend, reducer, coupling, cleaning ball, piston ... 0148mmChrome Carbide insertSchwing,Putzmeister, CIFA, Kyokuto, SanyZX-Pipe(ST52)Harden ZX-Pipe1257.0ZX-5 inchF/M ... picture: ST52 Concrete Pump Placement Pipe with SK Flange