... China Carbide Base, are specialized in manufacturing concrete pump wear parts for concrete pumps, including Sany, Zoomlion, Putzmeister,Schwing, Kyokuto ... , Kyokuto, Putzmeister, Waitzinger etc 3. other concrete pump spare parts: delivery Pipe(both normal and hardened) , elbow(welding& casting), reducer, ... ring, swing lever etc We can also make the parts by your own drawings and samples. Feel free to ...