... 1.Model:DN80,DN100,DN125,DN150,DN175,DN200 2.Mat:rubber 3.Color: White,Black Truck ... standard length,other length as to your request.2. elbow,reducing elbowmaterial:Hi-Mn13size:DN 125mm or ... 60,45,30,153. couplingmaterial:Hi-Mn13size:from 2 to 6inch,DN125mm and DN 150mm is the common ... SANY,Zoomlion,etc. Pictures concrete pump sealing rings Concrete pump sealing rings without lip(3'',4'',5'',6'',7'',8'',9 ...