... delivery pipe, elbow, reducer, (coupling)clamp , male and female flange ,rubber hose,cleaning ball,wear plate etc. Welcome to contact us for ... ,etcsize:DN 125mm or DN 150mm (R275,R225,R315,etc)degree:90, 60,45,30,15 3. concrete pump coupling/clampmaterial:Hi ... :DN100,DN125,DN150,according to your request 6.rubber items( adopt natural rubber) rubber hose:DN 125mm and DN 150mm ,3 or 4 meters ...