1,high production efficiency 2,safe and reliable 3,small size, light weight 4,eliminate high pressure Li Pai ... based LC series circuit2,High energy conversion over 97.5%3,Voltage feedback design, High power factor - never less 0.954 ... large part2,Heat treatment such as surface hardening for large part 3,Melting aluminum, copper or brass4,Preheating for pipe coating, bending ...