(1) Gasket For Flange Welded Joint (Pipe To Equipment) For 20 Mm Nb Pipe To Drawing No. Rdso/Wd-83062-S-7, Alt.-6, Item -1 = 28 Nos. (2) Gasket For 20 Mm Nb Pipe (Special) To Drawing No. R Dso/Wd-83062-S-7, Alt.-6, Item -1 = 02 Nos. [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]