... 80,000CBM 4.Material: T.C. Concrete pump spare parts manufacturer 1. Type: hardfacing, Tungsten ... Hole Ratio≤0.01%Leading manufacturer for concrete pump spare parts, fitting to Putzmeister, Schwing, Kyokuto, ... concrete pump spare parts: delivery Pipe(both normal and hardened) , elbow(welding& casting), reducer, rubber seal, pistons,coupling, intermiate ring, swing lever etc Concrete pump spare parts ...