Elastic Ring For Wag-9 Locomotive, Material: Cast Polyurethane Elastomer Conforming T O Rdso Specification No. Rdso/2007/El/Spec/0053 (Rev.2) And Rdso Drawing No. Skel-4717 (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 ] ]