... .hardness of 62-64 4.long service life pump spare parts 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, GM 1 ... and production of the new generation of concrete pump truck pipe flanges and wear-resisting, forgings with high-tech ...