... frequency induction braze welding machine, hardening, quenching(1-20KHz) Main features 1.Adopt IGBT technology, with all-round protective ... accessory, kitchen and table ware, art ware, standard part, fastener, fabricated mechanical part, bronze lock, rivet, steel pin and ... elements of various forms. Annealing (tempering and modulation) 1.Annealing of various stainless steel products, such as stainless ...