supply of procurement of 0.50 mm dia annealed tinned copper conductor pvc insulated cores colour coded tapped & overall pvc sheathed 21 pair telephone cable to tec%u2019s specification no. gr/wir-06/03 march 2002 with latest etc.procurement of 0.50 mm dia annealed tinned copper conductor pvc insulated cores colour coded tapped & overall pvc sheathed 21 pair telephone cable to tec%u2019s specification no. gr/wir-06/03 march 2002 with latest etc.,0.50 mm dia annealed tinned copper conductor pvc insulated cores colour coded tappe d & overall pvc sheathed 21 pair telephone cable to tecs specification no. gr/wir-06/03 march 2002 with latest amendment if any, up to the date of tender publishing. [ warranty period: 30 months aft er the date of delivery ] [quantity tolerance (+/-): 2 %age , item category : special (signaling cables) , total po value variation permitted: not applicable ] ]