... -shaft CNC processing centers, Friction welding, ultra-speed testing machine, CNC lathes, CNC wire cutting machines ... shaft, turbine blade, diffuser, nozzle ring, super-speed oil pump assembly, etc. Using such professional mapping ... .♦ high quality, professional, experience, efficiency and reliability.•Impeller ----Over-speed Test . Dynamic balance .•Shaft-------- Friction welding .Ultrasonic flaw ...