... frequency :12-25KHZ Induction heating machine,induction heating equipment,induction heating furnace.How to select the frequency of induction. Induction heating equipment, according to ... heat treatment, shaft, gear, quenching and annealing stainless steel products and put quenching as an example, The ... tool, reamer, milling cutter, drill bits, and stainless steel bottom of the pot, such as the composite ...