Sealing Ring For Over Head Tank. Drawing No.: Icf'S Drg. No. T-6-3-723, Alt. E / 8, Item N O. 6 Material Specification: Rubber - Hardness: 35 To 40 Shore [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]