... Pump Piston RAM include Schwing, Putzmeister, Kyokuto, Sany, IHI. DN180 DN200 DN230 DN250 NameConcrete Pump ... 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 DN200 Schwing concrete pump rubber piston ...