supply of tubes , list of item ( s ) / work ( s ) as per tender documents , item serial no . 0010 , tube , cs , 76 . 1 x 4 . 5 mm , boiler , russian , of enquiry cum scope of supply & technical specification of tender , item serial no . 0020 , tube , s/h , a213 , t11 , pe , 51 . 0x5 . 0x6000 , ibr , of enquiry cum scope of supply & technical specification of tender , item serial no . 0030 , tube , smls , sa213 , gr . t12 , pe , 51x5 , of enquiry cum scope of supply & technical specification of tender , item serial no . 0040 , tube , ss , smls , a312 , 347h , be , 51o . d . x 4 . 5thk , of enquiry cum scope of supply & technical specification of tender , item serial no . 0050 , ir fin colr tubes f/ au-5 ( 05-ea-01a~h ) , of enquiry cum scope of supply & technical specification of tender , item serial no . 0060 , tube , as , smls , a199 , gr . t5 , pe , 25x2 . 5x6000 , of enquiry cum scope of supply & technical specification of tender , item serial no . 0070 , tube , brass , b111 , c44300 , pe , 25 . 4x2 . 77x6000 , of enquiry cum scope of supply & technical specification of tender , item serial no . 0080 , tube , cs , smls , a179 , pe , 25 . 4x2 . 77 , of enquiry cum scope of supply & technical specification of tender , item serial no . 0090 , tube , cs , smls , a192 , pe , 31 . 75x2 . 5x6000 ibr , of enquiry cum scope of supply & technical specification of tender , item serial no . 0100 , tube , finned , cs , a179 , pe , 25 . 4x2 . 77x10500 , of enquiry cum scope of supply & technical specification of tender , item serial no . 0110 , air heater , boiler , 27-vp-20-w , bhel , of enquiry cum scope of supply & technical specification of tender , item serial no . 0120 , tube , finned , cs , a179 , 25x3x10500mm , of enquiry cum scope of supply & technical specification of tender