purchase of surgical tubes purchase of surgical tubes under medical and public health department, dnh and dd , rate contract for purchase of surgical tubes for department of health and family welfare, dnh & dd : ( specifications as per tender documents ) , endotracheal tube plain without cuffed 2.0 , endotracheal tube plain without cuffed 2.5 , endotracheal tube plain without cuffed 3.0 , endotracheal tube plain without cuffed 3.5 , endotracheal tube plain without cuffed 4.0 , endotracheal tube plain without cuffed 4.5 , endotracheal tube plain without cuffed 5.0 , endotracheal tube with cuffed 10.0 , extension tube coiled with anti piphon valve , i.v.extension tube 200cm with three way connection ( for infusion pump )