Detailed Product Description A.High frequency induction heating machine:frequency from20 to 80KHZ Application: all classes of machine parts heattreating( ... ,copper bar annealing,bar copper heating before forging, and so on. Type of machine: XG-18,XG-30,XG-40,XG ... heating, drill bit welding, metallic parts shrink fitting,and so on. Type of machine:XZ-40,XZ-50,XZ-60,XZ ...