tender for supply of air vent line in ash slurry pump house of stage-i , supply of air vent line in ash slurry pump house of stage-i with all dimensions and materials as per drawing enclosed. 200 nb spool piece with two flanges length :5150 mm ,pipe thick: 12.7mm, flange thick: 20 mm material : ss 316 gr , 200 nb spool piece with two flanges length:2600 mm ,pipe thick: 12.7mm, flange thick: 20 mm material : ss 316 gr , 150 nb spool piece of length 2020 mm with flanges pipe thick: 10 mm material : ss 316 gr , 150 nb spool piece with 1 flange length :250 mm ,pipe thick: 5.49 mm, thick:11 mm, flange thick: 10mm material : ss 316 gr , 80 nb spool piece with 1 flange length :200 mm ,pipe thick: 5.49 mm, flange thick: 10mm material : ss 316 gr , dummy flange 200nb pipe flange thick:20mm