HARD CHROMIUM PLATING
Hard chromium Wall Thickness : Min 20 Micron
Double Chromium Plating : Crack Free Layer 10 mic.
Plus 20 mic micro Kracked 1000 Vikers Layer.
Chormium Thickness Hardness : 850 Vikers- 1150 Vikers
Raughness : Ra 0,15 mic – 0,25 mic