Tenders for Supply Of Pipes, 1956 Supply Of 24 Inch Api 5L Gr.B Psl-1 Pipes Lsaw Or Hsaw 7.1Mm Thk Pipes Supply Of 20 Inch Api 5L Gr.B Psl-1 Lsaw Or Hsaw 6.4Mm Thk Pipes Supply Of 8 Inch Api 5L Gr.B Erw 6.35Mm Thk Pipes Supply Of 16 Inch Is3589 Gr.410 Erw 6.35Mm Thk Pipes Supply Of 6 Inch Is1239 Black Hvy Pipes