... rubber,TPU 3.Exact size,OEM available Concrete Pump Rubber Ring---Concrete Pump Rubber Gasket1.DN80 ,100,125,1502.Material:Polyurethane ... Natural rubber,TPU3.Exact size,OEM available Concrete Pump Rubber Ring/Gasket Verified Information This information is Verified by ... Capacity Actual Units Produced(Previous Year) Concrete Pump Pipe Flange, Concrete Pump Pipe Clamp and Forging Part Product Line ...