1. Concrete Pump spare Parts--Zoomlion Cutting Ring 2. material: tungsten carbide 3. pumping lifetime: 15, ... 000 cubic meters Concrete Pump spare Parts--Zoomlion Cutting Ring1. Material: body S35C steel 2. Lifetime: 15,000 ... strength of wear plate and S pipe, fitting to Sany, Zoomlion, Putzmeister,Schwing, Kyokuto, Cifa, Sermac, Niigata, Mitsubishi, IHI etc. main ...