IS:2532-1965 Specification for hard-drawn copper wire for telegraph & telephone purposes
Indian Standard Institution Manak Bhawan
IS:2532-1965 Specification for hard-drawn copper wire for telegraph & telephone purposes - ISI Manak bhawan 1965 - 9
IS:2532-1965 Specification for hard-drawn copper wire for telegraph & telephone purposes - ISI Manak bhawan 1965 - 9