1.Retouching 2.Professional digital film 3.Intensive plate-making 4.Precise itching process ... : 1219mm,Maximum length: 2438 mmEtching depth: 0.35umFEATURES: professional digital film, intensive plate-making, retouching, precise itching process, using ... is precise.SCOPE: elevator, build decoration, door, kitchen cabinet, household electrical appliances, digital Products etc Black and white spot BS-002 ...