... main applications are as following. A: parts surface heating treatment, parts surface hardening, tempering, annealing, etc.B: ... & Extraction ect.Heat treating services including HSS Heat Treatment, Induction Hardening, Hardening and Tempering, Gas Carburizing, Case ... , Spherodizing, Annealing, Normalizing, Stress Relieving, etc. Heat treatment is used to fabricate tool parts, jigs & fixtures, gears ...