... welding, forging, melting. YUELON heat treatment power source are wildly used in heat treatment, bonding, brazing, welding, forging, ... main applications are as following. A: parts surface heating treatment, parts surface hardening, tempering, annealing, etc.B: metal ... metals melting. E. dry resin, resin coating, warm resin forming,shrinkage fitting & Extraction ect. heat treatment power source