... large hydraulic turbine runner base in China. The technician team in GETAI under the leadership of senior specialists dealing with hydro- ... , numerical control, etc along with the skillful technicians play the role as the backbones in GETAI.The castings, rough & finish machining, ... turbine parts including needle jet, nozzles, runner hub, thrust collar,guide vanes, top covers, thrust ring, etc. are also ...