Concrete Pump Piston include Schwing, Putzmeister, Kyokuto, Sany, IHI. DN180 DN200 ... types upon customer’s requirement.MaterialPolyurethane,Natural rubberApplicationUsed in concrete pump truck, concrete pump, hydraulic ram system in Construction work equipmentService brandsSchwing ... , PM, Kyokuto, CIFA , Zoomlion, Sany, and so on Schwing Concrete Pump Spare Parts Piston