We apply decorative colors on ceramic items with AIP(arc ion plating) in PVD technology. It produces durable colors, such as golden, silver, etc. The main coatings is TiN(titanium nitride) and it's golden. The raw material is titanium. And for silver color, the raw material can be stainless steel or chrome. The higher vacuum we obtain during PVD coating, the colors will be more bright.