Concrete Pump Elbow: nDN125*R275*90 degree, casting 90 degree,45 degree,30 ... specialized in manufacturing concrete pump wear parts for concrete pumps, including Sany, Zoomlion, Putzmeister,Schwing, Kyokuto, Cifa, Sermac, Niigata, Mitsubishi, IHI ... S valve parts 3. Concrete pump spare parts: delivery Pipe, elbow, reducer, rubber seal, pistons, intermiate ring, swing lever etc ...