... , Aluminum, brass etc. 2.High speed 3.Environmental 4.CE Single Surface Etching MachineFeatures:1)Work by ionization effect to strip ... the metal2)Processing all conductive metal ,like stainless steel, titanium plate,copper,aluminum,etc.3)the processing area is not limited ... can get high profit with low investment. 10)Green environmental.without excitant od-our, non-toxic, no corrosion edge and leave ...