... 64 4.4-6inches,DN125,DN150,DN175 Sany DN125 concrete pump flange--- concretepump pipe flange MaterialQ235,20#steelModelDN125 ... ,so onTechnicalForging, high-temperature 1200 forging and intoAppicationConnection of Concrete pump and pump truck pipelineUsed forSchwing, PM, Kyokuto, ... with competitive price and good serviceWe can still produce products according to your drawings or samples. If any ...