DN150 concrete pump pipe fittings 1.20#steel 2.Forging,rolling 3.hardness of 62-64 4.long service life DN150 concrete pump pipe fittings 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, Ihi, Niigata 1.We are a manufacturer,the national ...