... wall concrete pump elbow 1,PM.Zoomlion,Schwing and so on 2,Materia: GCr15+Q235 3:Life:50000 CBM 4:HRC ... as Sany, XCMG, Putzmeister, Junjin, Swching, KCP etc. It has two layers.Inner-layer material is GCr 15. Its hardness is ... pumping 25,000 - 30,000 cubic meters and can be used on PUTZMEISTER, SCHWING, etc, boom pumps. Niigata DN125*R275*90D double ...