Specification for M.S. Tubes Tabuler and other Wrought Steel Fittings
IS-1239 (Part II)
Specification for M.S. Tubes Tabuler and other Wrought Steel Fittings Specification for M.S. Tubes Tabuler and other Wrought Steel Fittings IS-1239 (Part II); - ISI 1969
Specification for M.S. Tubes Tabuler and other Wrought Steel Fittings Specification for M.S. Tubes Tabuler and other Wrought Steel Fittings IS-1239 (Part II); - ISI 1969