... trailer and truck mounted pump 3. Type: hardfacing, T.C Wear ring fo Putzmeister concrete pump 1. Size: Dn180, DN200, N230 ... pump spare parts, main products as below:1. wear plate and wear ring(Hardfacing, normal Tungsten Carbide type and 7 shape Tungsten ... rubber seal, pistons, intermiate ring, swing lever etcPlease feel free to contact us for more detail. Wear Ring for Puzmeister Concrete Pump