ST52 Concrete Pump Delivery Pipe with SK Flange Material:ST52, 45Mn2, 20#,Q235 Brand: Schwing, PM, Sany, Kyokuto DN125 5 1 ... We are a professional manufacturer of concrete pump parts in China, specialized in producing concrete pump delivery pipe, rubber hose, elbow, ... ISO 9001-20006.lifetime:35000-45000 cubicConcrete Pump Delivery Pipe Specification: TypeDNThickness(mm)Length(mm)Weld-on EndsApplicable ...