... 3.Small occupation area 4. energy saving. high frequency induction welding equipment,high frequency induction welding furnace,induction welding machine. ... audio 30 mm above the tool applies to 1-8 KHZ IF 5,Metal meltingSpecialized in melting gold and ... duty cycle design, can work away2.protection function perfect, high reliability, small volume, light weight, simplified installation, easy operating ...