Introductio ad metallum Etching

In progressionemmetallum etchingPotest reduci ad antiquos Sinis. Antiqua Sinis scriptor Smelting technology est magis developed quam quod de Western terris, id est, Alchemy. Nam aeris et Titanium mixturis materiae, quam ad Etch haec materiae requirit a excelsum campester of technology.

Metallum etchingquae evolved a pluribus facies: I: Inventio et extractionem metallorum; II: inventa est eget potiones; III: Anti-cessum materiae corrosio. In vita, metallum corrosio generat novum oxidatio et evanescit. A Stone Age ad progressionem de metallum technology in millia annis, metallum odiosis extraxit acidum a acid-continens substantias ad praesens eget etching processus. The modern etching process is, Steel sheet cutting → degreasing and cleaning steel sheet → ink covering → finished film covering steel sheet → image transfer and development to steel sheet → etching finished product through corrosion potion → ink demoulding → finished product.