... steel, Titanium, Aluminum, brass etc. 2.High speed 3.Environmental Hot electric etching engraving machine BYT-3055 Features:1)Work by ionization effect ... conductive metal ,like stainless steel, titanium plate,copper,aluminum,etc.3)the processing area is not limited,4)the etching depth ... -text processing and strong power.7)High speed,it takes 3-10min to etching 40x60cm plate per piece.8) Can be ...