... CNC processing centers, Friction welding, ultra-speed testing machine, CNC lathes, CNC wire cutting machines, ... welding machines, etc. We mainly produce internal-combustion engine supercharger parts for ship, power generation, locomotive, ... Test . Dynamic balance .•Shaft-------- Friction welding .Ultrasonic flaw detection .• Impeller dynamic balance Best regards,Mona Manager Marketing Ship&Diesel engine ...