Swivel Flange And Socket For 20 Mm Nb Pipe & Conforming To Rdso Spec. No. 04-Abr-2019, Rev.02, December,2019 To Rdso Drg No : Rdso / Sk - 85187, Items - 2&4 Alt : 4. [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitt Ed: Max 8 Lacs ] ]