... auto-control 1.Application:Axles, gears, chain wheel, machine attachments, metal wire rods annealing, hydraulical fittings, ... , pliers, stainless pans annealing.2.Heattreating case of special parts:A:quenching long inner hole:quenching ... wire Φ4-Φ16,H13D:Welding line tempering in oil pipe:Temper steel pipe welding line Φ400 ... Φ20-80 heating 1000oC. X Series IGBT Induction Heating Treatment Machine