procurement of ms erw pipes and fittings . , ms erw pipe bevel end heavy duty confirming to is-1239 ( part-1 ) of following sizes: , nominal bore : 50 mm , thickness: 4 . 5 mm , od: 60 . 8 mm , pipe length: 6 meter , nominal bore : 80 mm , thickness: 4 . 85 mm , od: 89 . 5 mm , pipe length: 6 meter , nominal bore : 100 mm , thickness: 5 . 4 mm , od: 115 mm , pipe length: 6 meter , nominal bore : 125 mm , thickness: 5 . 4 mm , od: 140 . 0 mm , pipe length: 6 meter , ms erw pipe bevel end class-3 confirming to is-3589 of following sizes: , nominal bore: 150 mm , thickness: 7 . 0 mm , od: 168 . 3 mm , pipe length:12 meter , nominal bore: 200 mm , thickness: 8 . 0 mm , od: 219 . 1 mm , pipe length:12 meter , nominal bore: 250 mm , thickness: 8 . 0 mm , od: 273 . 1 mm , pipe length:12 meter , nominal bore: 300 mm , thickness: 7 . 0 mm , od: 323 . 9 mm , pipe length:12 meter , nominal bore: 350 mm , thickness: 7 . 0 mm , od: 355 . 6 mm , pipe length:12 meter , ms erw 90 deg . short bend bevel end heavy duty confirming to is-1239 ( part-1 ) of following sizes: , nominal bore : 50 mm , thickness: 4 . 5 mm , od: 60 . 8 mm , nominal bore : 100 mm , thickness: 5 . 4 mm , od: 115 mm , nominal bore : 125 mm , thickness: 5 . 4 mm , od: 140 . 0 mm , ms erw 90 deg . short bend bevel end heavy duty confirming to is-3589 of following sizes: , nominal bore: 150 mm , thickness: 7 . 0 mm , od: 168 . 3 mm , nominal bore: 200 mm , thickness: 8 . 0 mm , od: 219 . 1 mm , nominal bore: 250 mm , thickness: 8 . 0 mm , od: 273 . 1 mm , nominal bore: 300 mm , thickness: 7 . 0 mm , od: 323 . 9 mm , nominal bore: 350 mm , thickness: 8 . 0 mm , od: 355 . 6 mm