... -64 4.4-6inches,DN125,DN150,DN175 Sany DN125 concrete pump flange--- concretepump pipe flange MaterialQ235,20#steelModelDN125,DN150,DN175 ... ,so onTechnicalForging, high-temperature 1200 forging and intoAppicationConnection of Concrete pump and pump truck pipelineUsed forSchwing, PM, Kyokuto, Sany, Zoomlion, ... do feel free to contact us directly. Sany DN125 concrete pump flange,forged rings