... and supply concrete pump parts(fitting to Schwing and PM , Sany, Zoomlion,CIFA)includingdelivery pipe, elbow, reducer, (coupling)clamp , male and ... ,3 or 4 meters,other sizes upon your request rubber piston/gasket:DN 125mm and DN 150mmrubber sponge balls:for all ... and cutting ring Fitting to schwing,PM,SANY,Zoomlion,etc. Pictures concrete pump sealing rings SANY DN150(6'') Concrete Pump rubber gasket