Tenders for Supply of Spring Lock Washer B 12 To Is: 3063/94 And Is:4072/75, Grade-3, Galvanised To Is:1573/86 To Servi Ce Grade No.2 Of Tab.2 Ref.Drg.No. Item 17 Of T-O-1-646, Alt.F/Nil Bss-1802/51 Warranty Period: 30 Months A Fter The Date Of Delivery