... .work 24h continuously. WH-VI-40KW high frequency induction quenching machine ModelWH-VI-40Worker power Three phrase 380V/50HzWorking voltage range ... , gear parts hardened surface;4 bed machine tool of machine tool industry guide of quenching (lathe, milling machine, planer, punch, etc.)5. All ... waiting for you!! WH-VI-40KW high frequency induction quenching machine