procurement of tube and fittings as per tender specification at digboi refinery , list of item ( s ) / work ( s ) as per tender documents , ss316 male connector 1/2 in nptm x 1/2 in od , ss316 male connector , 1/2in npt ( m ) x 1/4in od , ss316 male connector , 1/4npt ( m ) x1/4od , ss316 male connector , 1/4 npt ( m ) x 1/2 od , ss316 male connector , 1/4in npt ( m ) x 3/8in od , ss316 male connector , 3/8 npt ( m ) x 1/2 od , ss316 male connector , 3/8in npt ( m ) x 3/8in od , ss316 male connector , 1/2innpt ( m ) x12mmod , elbow 90 deg , size1/2npt ( m ) x1/2od , ss316 , tube union 1/2od x 1/2 od , ss316 , tube union 1/4od x 1/4 od , ss316 , branch tee , 1/2od x 1/2 od x 1/2od ss316 , branch tee , 1/4in x 1/4in x 1/4inod , ss316 , blind , ss316 , 1/2 in , nut with ferrule , ss , 1/2 in ( od ) , ss nut with ferrule , 1/4in od , needle valve , 1/2in npt ( f ) , ss316 testing shall be done similarly to ball valve specification of annexure i . , sss316 ball valve , 1/2in nptf with reinforced ptfe seat and ss316 ball . , ss tube , 1/2in od , thickness-0 . 035in offer to be provided per meter while tube to be supplied in pieces of 6m length each i . e . 200 pieces for 1200m . , ss tube , 1/4in od , thickness-0 . 035in . offer to be provided per meter while tube to be supplied in pieces of 6m length each i . e . 200 pieces for 1200m . , 1 ea= 1 meter ss tube , 3/8in od , thickness-0 . 049in . offer to be provided per meter while tube to be supplied in pieces of 6m length each i . e . 25 pieces for 150m . , tube union: 5mmod x 5mmod ( ss316 ) , 1 ea = 1 meter ss tube: od-5 mm ( id-4mm , tolerance: 0 . 2mm , moc:ss316 ) offer to be provided per meter while tube to be supplied in roll form of max . possible standard length . e . g 15 meter * 10 = 150 meter bidder to mention the tube length in offer . , ss316 , connector 1/4 nptf x 5mmod , blind: 5mm od ( ss316 )