... : Chromed or not, we will according to your requirement. Chrome thickness: 20-30mmQ3: What is the diameter and length we can offer ?A ... : Diameter: 6mm-1000mm; Length:1000mm-8000mmQ4: What is the other tolerance ?A:Surface Roughness: Ra≤0.4mm ; Straightness ≤ ... maximum ,Q5: What is the package ?A: Package1,All shafts will be lubricated. 2,Rubber or plastic rings to separate between shafts. ...