PVD coating Cr color recipe
Chromium + methane: dark and light black
Chromium + nitrogen: light black
Chromium + nitrogen + methane: silver gray
Chromium + oxygen: light yellow, purple, green
IKS PVD company,decorative coating machine,tools coating machine,optical coating mahcine,PVD vacuum coting line.Contact us now,E-mail: iks.pvd@foxmail.com