supply of straight tubes and bends for pressure parts in unit iv and v boiler , supply of straight tubes & bends for pressure parts in unit iv & v boiler with all dimensions and materials as per the drawing enclosed , straight tube of size od 44.5 mm x 4.5 mm thick sa 213 t 11 , straight tube of size od 54 x 3.6 mm thick sa 213 t 11 , straight tube of size od 60.33 x 3.91 mm thick sa 106 gr. b , straight tube of size od 88.9 mmx 5.49mm thick sa 106 gr. b , straight tube of size od 114.3 mmx 6.02 mm thick sa 106 gr. b , reheater coil off set bend no. 115 & 118 in a single piece of dia 47.63 x 4 mm sa 213 t 91 , reheater coil off set bend no. 116 & 119 in a single piece of dia 47.63 x 4 mm sa 213 t 91 , reheater coil bend no. 98 of ? 54 x3.6 mm sa 213 t22 , reheater coil bend no. 99 of ? 54 x3.6 mm sa 213 t22 , reheater coil bend no. 100 of ? 54 x3.6 mm sa 213 t22 , reheater coil bend no. 101 of ? 47.63 x3.4 mm sa 213 t22 , reheater coil bend no. 102 of ? 47.63 x3.4 mm sa 213 t22 , dissimilar joint dia 54 x 3.6 mm thick sa 213 t 22 + dia 54 x 4 mm thick sa 213 t 91 (length 500 mm) , dissimilar joint dia 47.63 x 4 mm thick sa 213 t 22 + dia 47.63 x 4 mm thick sa 213 t 91 (length 500 mm) , swaged tube size of 54 x 3.6 mm to 47.63 x 4 mm sa 213 t 22 , reheater coil bend no. 83 of ? 54 x3.6 mm sa 213 t22 , reheater coil bend no. 84 of ? 54 x3.6 mm sa 213 t22 , reheater coil bend no. 85 of ? 54 x3.6 mm sa 213 t22 , reheater coil off set bend no. 93, 94, 97 in a single piece of dia 47.63 x 3.4 mm sa 213 t 22 , reheater coil off set bend no. 95 & 96 in a single piece of dia 54 x 3.6mm sa 213 t 22