Concrete pump pipe OD:133,140,159,168mm Thickness:4.0, ... Material:seamless pipe/ERW pipe/cast steel pipe Concrete pump pipeThe Concrete Pump straight Pipe is the meaning of the concrete conveying ... pump pipeline, Having High Wear-Resistant CONCRETE PUMP PIPEUsageTrailer pump pipe , ground pumpMaterialCast Steel Pipest52, ... 3 1684.0/4.5/7.0 3 Concrete Pump Pipe