... Descriptionwear resisting concrete pump pipe 1.rigidity:60-65HRC 2.life:50000CBM 3.material:ST52,45Mn2 wear resisting ... reducers,couplings,rubber hoses,cleaning ball and so on.2.Our products are top quality in china which ... Hardened 1254.51--9 148(mm)Multiunit Flange60-65 2-2.520,000-30,000 Pipe 4.85148(mm)Multiunit ... Multiunit Flange picture HIH DN125 Concrete Pump Pipe(twin-wall) With twin wall flange