supply of galvanized mild steel tubes electrical resistance welded (erw)/high frequency induction welded (hfiw) /hot finished welded (hfw) confirming to is 1239 (part1)/2004 screwed at both ends as per is:554/1999 socketed at one end other end protected with plastic thread protector. the socket confirming to is :1239 (part ii)/2011 in random length of 4 to 7 mtrs. g.i. pipe shall be duly isi marked as per statutory requirement nominal bore 25 mm medium grade.galvanized mild steel tubes electrical resistance welded (erw)/high frequency induction welded (hfiw) /hot finished welded (hfw) confirming to is 1239 (part1)/2004 screwed at both ends as per is:554/1999 socketed at one end other end protected with plastic thread protector. the socket confirming to is :1239 (part ii)/2011 in random length of 4 to 7 mtrs. g.i. pipe shall be duly isi marked as per statutory requirement nominal bore 25 mm medium grade.,galvanized mild steel tubes electrical resistance welded (erw)/high frequency induction welded (hfiw) /ho t finished welded (hfw) confirming to is 1239 (part1)/2004 screwed at both ends as per is:554/1999 socketed at one end o ther end protected with plastic thread protector. the socket confirming to is :1239 (part ii)/2011 in random length of 4 to 7 mtrs. g.i. pipe shall be duly isi marked as per statutory requirement nominal bore 25 mm medium grade. [ warranty p eriod: 30 months after the date of delivery ] ] => limited