supply of 15 mm galv. steel tubes medium grade is: 1239 part-i/2004 both ends screwed one end with socket and other end with plastic thread protector , randum length of 4 to 7 m continuously welded electric resistant weld(erw), high frequency induction welded(hfiw), hot finished welded (hfw) light coated isi mark and socket also to be isi marked confirming to is: 1239 (part-ii)/201115 mm galv. steel tubes medium grade is: 1239 part-i/2004 both ends screwed one end with socket and other end with plastic thread protector , randum length of 4 to 7 m continuously welded electric resistant weld(erw), high frequency induction welded(hfiw), hot finished welded (hfw) light coated isi mark and socket also to be isi marked confirming to is: 1239 (part-ii)/2011,15 mm galv. steel tubes medium grade is: 1239 part-i/2004 both ends screwe d one end with socket and other end with plastic thread protector , randum length of 4 to 7 m continuously welded electric resistant weld(erw), high frequency induction welded(hfiw), hot finished welded (hfw) light coated isi mark and socket also to be isi marked confirming to is: 1239 (part-ii)/2011 [ warranty period: 30 months after the date of del ivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] carr. repair stores/tpty, andhra pradesh 1727.00 metre scr