... Lifetime: 30,000~80,000cbm Putzmeister wear plate and cutting ring 1. Application: PM truck and trailer mounted concrete pump ... USED FOR HARDFACING. PM common wear plate and wear ring list as below: DN180DN200 for small mouth DN220 C ... elbow, reducer, rubber seal, pistons, intermiate ring, swing lever etc4. Special tungsten carbide products: wire drawing dies, carbide inserts and blades, carbide plate ...