Technical index
Depth of nitrated layer: 0.5-0.8mm
Hardness of nitration: 900-1020hv
Fragility of nitration: less than grade 1
Surface roughness: ra 0.4um
Hardness of cr-coating layer: >=950hv
Hardness of bimetallic layer: hrc55-72
Thickness of cr-coated layer: 0.03-0.08mm
Depth of bimetallic layer: >2mm.
1set/wooden box.
