Stainless steel ‘mailboxes production after etching processing, chemical reactions, or physical impact is the material used and removing technology.
Etching techniques can be divided into two categories, wet etching, and dry etching.
First, exposure method: according to the engineering graphics drawn a stock size – material preparation – cleaning – drying – film or coating – drying – exposure and development – drying – etching to take off the membrane, OK.
The second, screen printing method: open material – > cleaning plate (stainless steel) of other metal material to silkscreen printing, etching to take off the membrane, OK.