Tender For supply of forged alloy steel flange, size- 4" " nb x 600# , weld neck raised face with serrations (wnrf) , forged alloy steel flange, size- 4" nb x 600# , wnrtj to suit 4" nb sch 80 pipe; moc: astm a182 , forged alloy steel flange, size- 2" nb x 600# , wnrtj to suit 4" nb sch 80 pipe; " moc: astm a182 f12 , elbow smls astm a 234 gr wp12, class 2 as per ansi b16.9, lr, 90 deg, size 100 mm nb, sch 80