000 00302nam a2200073 4500
080 _a
_b
245 _aIS: 1239 (Part I) - 1973 (with amendment No.3 - 1978) : Specification for Mild Steel Tubes, Tubulars and Other Wrought Steel Fittings Part 1 Mild Steel Tubes
700 _aINDIAN STANDARDS INSTITUTION
260 _aNew Delhi
_bBIS
_c1974
300 _a17p
999 _c26507
_d26507