supply of air vent line in ash slurry pump house of stage ii , supply of air vent line in ash slurry pump house of stage-ii with all dimensions and materials as per drawing enclosed. material : ss 316 gr a)200 nb spool piece with two flanges -03 nos. length : 4200 mm pipe thick: 12.7 mm flange thick: 20 mm b)80 nb spool piece with one flange - 03 nos. length : 200 mm pipe thick: 5.49 mm flange thick: 10 mm c)80 nb spool piece with two flanges - 03 nos. length : 400 mm pipe thick: 5.49 mm flange thick: 10 mm d)80 nb spool piece with one flange - 03 nos. length : 600 mm pipe thick: 5.49 mm flange thick: 10 mm e)150 nb spool piece with one flange - 01 no. length : 250 mm pipe thick: 11 mm flange thick: 10 mm f)dummy flange 200 nb pipe - 02 nos. flange thick: 20 mm g)80 nb 90° bend with two flange- 03 nos.. length : 240 mm pipe thick: 5.49 mm flange thick: 10 mm