Tenders for Supply of Set Of Teflon Gasket & Spring For 1 - 1/4 Inch Non-Return Valve Type 86-R As Per Drg. No.Elw/Bsl/1/Wam-4/F-74.094 Item Ref. 3 & 6. Set Comprises Following Items: No:- 1 Teflon Gasket Ref-6, Qty. - 01 No No:-2 St Spring Steel Ref-3, Qty- 01 No