supply of l bracket insulation made of nylon66 as per specification no. irs: s 40 / 84. one set consisting of 1 ) insulating plate drg no s-8804-1nos, 2 ) insulating bush drg no. s-8813-2nos, 3 ) insulating washer drg no. s-8640-2nos. [ warranty period: 30 months after the date of delivery ] , supply of insulation set for stretcher bar made of nylon 66 as per rdso spec no. irs.s.40 / 84 with amdt-i ( amdt upto date if any ) . set consisting of a ) spacer plate to drg no. t-10367-1no, b ) bush to drg no. t-10368-2nos , c ) washer to drg no. t-10371=04nos. [ warranty period: 30 months after the date of delivery ] , supply of insulation joint set for gauge tie plate made of nylon 66 as per rdso spec no. irs:s 40 / 84 with amdt-1 ( amdt upto upto date if any ) . set consisting of : 1 ) spacer plate to drg no. t-10372-1no, 2 ) bush to drg no. t-10368-3nos, 3 ) washer to drg no. t-10371-06nos. [ warranty period: 30 months after the date of delivery ]