15 Nb (21.8 Mm Od X 2.65 Mm Thk) X 4000Mm – 7000 Mm Lg, Mild Steel Tubes Erw Plain Ends To Matl Specification Aa10152 Rev07. (1 Mt) Supplies Quantity Is To Be Restricted Between 1.1 Mt & 0.9 Mt. 25 Nb (34.2 Mm Od X 3.25 Mm Thk) X 4000Mm – 7000Mm Lg, Mild Steel Tubes Erw Plain Ends To Matl Specification Aa10152 Rev07. (6 Mt) Supplies Quantity Is To Be Restricted Between 6.6 Mt & 5.4 Mt. 32 Nb (42.9 Mm Od X 3.25 Mm Thk) X 4000Mm – 7000Mm Lg, Mild Steel Tubes Erw Plain Ends To Matl Specification Aa10152 Rev07. (2 Mt) Supplies Quantity Is To Be Restricted Between 2.2 Mt & 1.8 Mt. 50 Nb (60.8 Mm Od X 3.65 Mm Thk) X 4000Mm – 7000Mm Lg, Mild Steel Tubes Erw Plain Ends To Matl Specification Aa10152 Rev07. (3 Mt) Supplies Quantity Is To Be Restricted Between 3.3 Mt & 2.7 Mt. 80 Nb (89.5 Mm Od X 4.05 Mm Thk) X 4000Mm – 7000Mm Lg, Mild Steel Tubes Erw Plain Ends To Matl Specification Aa10152 Rev07. (50 Mt) Supplies Quantity Is To Be Restricted Between 55 Mt & 45 Mt. 100 Nb (115 Mm Od X 4.50 Mm Thk) X 4000Mm – 7000 Mm Lg, Mild Steel Tubes Erw Plain Ends To Matl Specification Aa10152 Rev07. (37 Mt) Supplies Quantity Is To Be Restricted Between 40.7 Mt & 33.3 Mt.