... 1.Optical axis is widely used in Industrial automatic machine,such as Industrial Robot,Automatic Recording instrument,Computer,Precision Printers and so on ... 45mm, 50mm, 60mm. ( image) , length can cut as per customer's requirments, from 100-6000mm, we sugguest customer accept max length ... goods in stock 6. cut the length as per customer's requirments7. chamfering the two ends 8. machining the two ends ...