... ; 4. TBI brand qualtiy guantee. Gear shaft TBI brand Dia. 16mm supplied by SNE Application: 1.Optical axis is widely used ... hollow cylinder linear shaft. cylinderlinear rail series: including Dia. size 6mm, 8mm, 10mm, 12mm, 13mm, 15mm,16mm, 20mm,25mm,28mm, 30mm, 32mm, ... blockes. TBI rectangle wheel linear rail series. Contact with us, you are welcome!!! Gear shaft TBI brand Dia. 16mm supplied by SNE