... brand qualtiy guantee. Linear guide shaft TBI brand Dia. 20mm supplied by SNE Application: 1.Optical axis is widely ... Dia. size 6mm, 8mm, 10mm, 12mm, 13mm, 15mm,16mm, 20mm,25mm,28mm, 30mm, 32mm, 35mm, 40mm, 45mm, 50mm, 60mm. ... as per customer's requirments7. chamfering the two ends 8. machining the two ends 9. goods packing, greasing ... welcome!!! Linear guide shaft TBI brand Dia. 20mm supplied by SNE