... Concrete Pump Boom Elbow 1. DN125 * R275/R385/R320 * 90'/45'/30' 2. High Manganese Casted, Flange Concrete Pump Elbow Our elbows are high manganese steel ... , Kyokuto, Cifa, Sany, Zoomlion, etc, boom pumps.Technical Data: NameConcrete pump elbowSizeDN125(5’’), DN150(6’’)RadiusR275, R180 R320Degree90’, ... , Cifa, Sany, Zoomlion.SurfacePainting Putzmeister DN125 Manganese Concrete Pump Boom Elbow