... 3.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, ... of 62-64 °. 3.This series of products for high wear-resisting hardening of the product, the product ...