Recommends the proforma for the preparation of purchase specification for vertical turning and boring lathes with table diameter up to 1 600 mm. It also gives essential information about the vertical turning and boring lathes and their accessories which will enable the user to assess the usefulness and suitability for requirements.
IS 6893 Pt.4-1987 history
1988IS 6893 Pt.4-1987 Machine Tool Procurement Specification Form Part 4 Vertical Lathes and Boring Machines