Chrome thickness:20 TO 50 Micron
Surface roughness:Ra <=0.4 Micron
Outer diameter tolerance:ISO f7
Ovality:Half of the tolerance ISO f7
Straightness: <=0.2mm/m
Corrosion resistance:Test in natural salt spray according to ASTM B 117-36 hours.
Packing:Anti rust oil to be spread on rod surface and each rod to be packed in paper roll and then in wooden box.