supply of isi marked steel tubes galvanized to is 1239 (part 1) : 2004 with amndt.4 in random length of 4 to 7 mtrs. screwed at both ends as per is: 554/1999 with amndt. no. 1, socketed at one end and other end protected with plastic thre ad protector in 40 mm bore and medium class. socket confirming to is: 1239 (part 2) : 2011 medium class of g.i. pipes.isi marked steel tubes galvanized to is 1239 (part 1) : 2004 with amndt.4 in random length of 4 to 7 mtrs. screwed at both ends as per is: 554/1999 with amndt. no. 1, socketed at one end and other end protected with plastic thre ad protector in 40 mm bore and medium class. socket confirming to is: 1239 (part 2) : 2011 medium class of g.i. pipes.,isi marked steel tubes galvanized to is 1239 (part 1) : 2004 with amndt.4 in random len gth of 4 to 7 mtrs. screwed at both ends as per is: 554/1999 with amndt. no. 1, socketed at one end a nd other end protected with plastic thre ad protector in 40 mm bore and medium class. socket confir ming to is: 1239 (part 2) : 2011 medium class of g.i. pipes. [ warranty period: 30 months after the d ate of delivery ] ] general stores depot izzatnaga, uttar pradesh 724.00 metre