... is 62-64 3.Stable quality, and low price. flange for concrete pump pipe MaterialQ235,20#steelModelDN125,DN150,DN175 ... ,so onTechnicalForging, high-temperature 1200 forging and intoAppicationConnection of Concrete pump and pump truck pipelineUsed forSchwing, PM, Kyokuto, Sany ... , Ihi, Niigata1.We are a manufacturer of flange and concrete pump pipe clamp,which use the national high quality ...