Schwing Concrete delivery pipe with twin wall 45Mn2, 20#,Q235 Brand: Schwing, PM, Sany, Kyokuto Cubic: 50,000~ ... pump parts in China, specialized in producing concrete pump delivery pipe, rubber hose, elbow, bend, reducer, coupling, ... 0148mmChrome Carbide insertSchwing,Putzmeister, CIFA, Kyokuto, SanyZX-Pipe(ST52)Harden ZX-Pipe1257.0ZX-5 inchF/M ... F/MOthers Schwing Concrete delivery pipe with twin wall