DN125 concrete pump twin wall pipe DN125* 3M length* 4.5mm Thickness Material:ST52, 45Mn2, 20#,Q235 1. We are ... /20#/Q235steel pipe1254.03000/2000/1000148mmSchwing,Putzmeister, CIFA, Kyokuto, Sany, 4.5148mmSchwing,Putzmeister, CIFA, Kyokuto, Sany,7.0148mmSchwing,Putzmeister, CIFA, Kyokuto ... HD/ZX-6inch F/MOthers DN125 concrete pump pipe(two layer)