... , metal plating,electrophoresis, polishing,Aluminum color Multi-functional High speed electronic engraving machine is one of used specific liquid that to engraving ... 01105380.1 etc, via of testing report from National product quality & control bureau: NPQC No.3. 200150013, as well as via ... one layer of metal) and any shape of plane bend, slice and arc. It's not only same result as the ...