Product Name:  column linear 12mm axis    

Model: SFC12     Material:  GCR15     hardness:HRC58-64                                                      

precision:g6        rough:Ra0.8-Ra0.4   length:100-7000mm

straightness:less than 0.08/1000mm  Surface Hard-thickness:0.8-2.5mm
chrome plating thickness:1.5-2.0um

Cylindricity :less than 5μm by 500mm