Tenders for Supply of 1-2 Isolating Cock With Vent Spec. Drawing No- 0/2/65/364, Alt 6, Ref 6 Or Kpa Drg.No.- Er/Kpa/El/Va.3Hb/159 C Item- B Side B Vented When Closed Firms Offer :- Clw Drg.No.0/2/65/364 Alt-6 Ref.6. Warranty Period: 30 Months After The Date Of Delivery