"NANO Chemical Etching" Technique which we have developed is ultra fine processing technology to engrave 1,000 ~ 26,000 fine particles per cm2 which are difficult to identify with the naked eye on the metal plates such as stainless steel plate and brass plate, etc. and it is designed to make it possible to preserve for 1,000 years outdoors and preserve for more than 20,000years indoors.
Application of restoration technology makes not only ordinary photo and image but also photo damaged, discolored and faded show high restoration rate.
1. To be available for fine part of image
2. To...