1.Model:DN125,DN150,DN175 etc 2.Material:45Mn2,ST52,37Mn5 and alloy. 3.Length:1m-9m 4.Life:50000CBM. 5.Name:hardened pip Wear-resisting Concrete Pump Pipe 1.Our company is one of the leading concrete pump pipe manufacturers in China which has been engaged in this field for over 10 years. Our products include concrete delivery pipes, elbows, reducers, couplings, rubber hoses, cleaning ball and so ...