Putzmeister S valve type wear plate and wear ring 1. welding type ... , are specialized in manufacturing concrete pump wear parts for concrete pumps, including Sany, Zoomlion, Putzmeister,Schwing, ... . 1. Tungsten carbide wear plate and wear ring(normal T.C. type and 7 shape T.C. type ... other concrete pump spare parts: delivery Pipe(both normal and hardened) , elbow(welding& casting), reducer, rubber seal ...