Product DescriptionThe metal etching process allows us to have strength and still have extremely fine detail on a variety of elements ,Website:://.doho-printing.com,Examples of metal etching on our models are :people (at small scales) ,railings ,steps ,window ,frames ,screens ,antennas ,signs ,car parts ,fences ,furniture ,etc ,Pieces can be etched on both sides of only one ,plus all the way through the metal .Materials:Stainless SteelSteel AlloysNickelCopperCopper AlloysBrassBeryllium CopperKovarInvarDatum AlloySteel AlloysPhosphorous BronzeThe six steps of photochemical machining:1.Clean the metal in dilute acid solution to remove oils and contaminants2.Laminate photopolymer film on both sides3.Print the part patterns onto the coated metal and expose the photopolymer4.Develop the printed image to remove unexposed resist5.Etch the metal in ferric chloride solution6.Strip the resist in sodium hydroxide solution