... 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, ... development and production of the new generation of concrete pump truck pipe flanges and wear-resisting, forgings with ...