... classes of machine parts heattreating(quenching,anneal, temper,normalizing),braze welding,smelting,copper bar annealing,bar copper heating before forging, and ... -80,XG-100,XG-120,XG-160,XG-200,XG-250,XG-300,XG-400,XG-500. Example :1.various kind ... ,inside bore quenching. 2. Φ5-Φ12wire annealing. 3.drill bit welding. 4. Bar stock belowΦ25 through heating,speed faster than ...