Our company was established in 1989, We have professional of etching and precision engraving and etching technology, Now, We study success new etching technology,It can holographic colors and clear patterns produced on less 0.3 mm thickness precious metal surface.It also can produce in the general metal.We can treatment hologram and shiny diamond to precious metal surface. We have our own design team to develop new products to keep up with market trends and accept OEM and customer design orders.