Tenders for 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..
