procurement of boiler tube guard of different size for unit-5 boiler overhauling under bmd,stps , tube guard, id:48, th:3, ss-304 for ltsh semicircular cross section for tube od:47.63mm with 2 nos clamp for each 1 mtr tube guard. clamp width 20mm , tube guard th2.5,ss304 for tube od47.63 #additional data: with 2 nos clamp for each 1 mtr tube guard. clamp width 20mm , tube guard th2.5,ss304 for tube od38.1 # additional data: with 2 nos clamp for each 1 mtr tube guard. clamp width 20mm , tube guard th2.5,ss304 for tube od76.1 # # for screen tube additional data: with 2 nos clamp for each 1 mtr tube guard. clamp width 20mm , tube guard th2.5,ss304 for tube od63.5 # additional data: with 2 nos clamp for each 1 mtr tube guard. clamp width 20mm , tube guard th2.5,ss304 for tube od44.5 # additional data: with 2 nos clamp for each 1 mtr tube guard. clamp width 20mm , tube guard,isb,tube od47.63mm,r152,90deg for ltsh tube moc:ss-304,inside bend for tube od-47.63mm,tickness:2.5mmrn additional data: with 2 nos clamp for each 1 no tube guard. clamp width 20mm , tube guard,osb,tube od47.63mm,r152,90deg for ltsh tube moc:ss-304,outside bend for tube od-47.63mm,tickness:2.5mm additional data: with 2 nos clamp for each 1 no tube guard. clamp width 20mm , tube guard,osb,tube od38.1,r143.3,90deg for economizer tube moc:ss-304,outside bend for tube od-38.1mm,tickness:2.5mm additional data: with 2 nos clamp for each 1no tube guard. clamp width 20mm