... and spare parts,like delivery pipe,elbow,coupling,fitting schwing,PM, 90 degree bendThis is the brief ... ,etc),which include delivery pipe, elbow, reducer, (coupling)clamp , male and female flange ,rubber hose,cleaning ball,wear ... ,other length as to your requeirement. 2. elbow/bend and reducer elbowmaterial:Hi-Mn13,20#steel ... or DN 150mm (R275,R225,R315,etc)degree:90, 60,45,30,15 3. concrete pump coupling ...