... DN80,DN100,DN125,DN150,DN175,DN200 2.Mat:rubber 3.Color: White,Black Truck-mounted concrete pump partsWe are ... DN 125mm or DN 150mm (R275)degree:90, 60,45,30,153. couplingmaterial:Hi-Mn13size:from 2 to 6inch,DN125mm ... rubber) rubber hose:DN 125mm and DN 150mm ,3 or 4 meters,other sizes upon your request rubber piston ... sealing rings Concrete pump sealing rings without lip(3'',4'',5'',6'',7'',8'',9'')