concrete pump coupling DN 125,DN150, DN100 by casting PM/Schwing/Sany/Zoomlion ... (normal T.C. type and 7 shape T.C. type)Fitting to Putzmeister, Schwing, Kyokuto, Sany, Zoomlion, Sermac, IHI, Niigata etc ... normal and hardened) , elbow(welding& casting), reducer, rubber seal, pistons,coupling, intermiate ring, swing lever etc We can also make the ...