pump pipe (1)Material:45Mn2,St52,Q235,37Mn5 (2)Size ... 3)Series:125 and 150 (4)Type:high and low pressure We are the professional supplier for the pipe fittings and ... your requirement.The description of the goods as follows: Nameconcrete pump pipeSizedia.133, dia.140, dia.159, dia168Material45Mn2, St52, St35 ... in concrete transportation in construction workStandardISO, ANSI, GB concret pump straight pipe