TY  - BOOK
AU  - INDIAN STANDARDS INSTITUTION
TI  - IS: 1239 (Part II) - 1969 : Specification for Mild Steel Tubes, Tubulars and Other Wrought Steel Fittings Part 2 Mild Steel Tubulars and other Wrought steel Pipe Fittings
PY  - 1970///
CY  - New Delhi
PB  - BIS
ER  -