tender for boiler and ecomomazer retubing works-2 dismantling, fabrication and erection of frunt header roof tubes with hydraulic testing at desired pressure of boiler no. 1 & 2 ( bacaulf make ) capacity 20 ton / hr. size 70.00mm o.d. x 3.66 mm thick 3 dismantling, fabrication and erection ofgilled type economiser coil with hydraulic testing at desired pressure of boiler no. 1 & 2 ( bacaulf make ) capacity 20 ton / hr. size 101.00mm o.d. x 4.06 mm thick party will be supplied m.s. fins as per drg. sample ( note : tube will be given by the factory ) . 4 dismantling, fabrication and erection ofroof tubes with hydraulic testing at desired pressure of boiler no. 3 ( thermax make ) capacity 32 ton / hr. size 63.50 mm o.d. x 3.66 mm thick . 5 dismantling, fabrication and erection ofriser tubes with hydraulic testing at desired pressure of boiler no. 3 ( thermax make ) capacity 32 ton / hr. size 76.20 mm o.d. x 3.66 mm thick . 6 dismantling, fabrication and erection ofside wall tubes with hydraulic testing at desired pressure of boiler no. 3 ( thermax make ) capacity 32 ton / hr. size 63.50 mm o.d. x 3.66 mm thick . 7 dismantling, fabrication and erection of economiser coil with hydraulic testing at desired pressure of boiler no. 3 ( thermax make ) capacity 32 ton / hr. size 38.10 mm o.d. x 4.06 mm thick . 8 dismantling, fabrication and erection of super heater coil with hydraulic testing at desired pressure of boiler no. 3 ( thermax make ) capacity 32 ton / hr. size 44.45 mm o.d. x 4.06 mm thick . 9 fabrication and erection of bend for gilled type economiser with hydraulic testing at desired pressure of boiler no. 1 &2 ( bacaulf make ) capacity 20 ton / hr. 10 supply of bend for gilled type economiser with test certificate for boiler no. 1 &2 ( bacaulf make ) capacity 20 ton / hr.