... 62-64 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 ... , pls do feel free to contact us directly. Sany DN125 concrete pump flange,forged rings