Rubber Gasket 1.DN80 ,100,125,150 2.Material:Polyurethane, Natural rubber,TPU 3.Exact size,OEM available Concrete Pump ... Ring---Concrete Pump Rubber Gasket1.DN80 ,100,125,1502.Material:Polyurethane, Natural rubber,TPU3.Exact size,OEM available Concrete Pump Rubber ...