Sealing Ring For Man Hole Cover To Irs Drg. No. W/Tf-2169, Alt. 01. Material And Specification As Per Drg. As Per Drg.No. Drg. No. W/Tf-2169 , Alt.01 [ Warranty Period: 30 Mon Ths After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitt Ed: Max 8 Lacs ] ]