supply of anti bird discanti bird disc,anti bird disc (poly carbonate & flammability rating of v-2 or higher as per ul-94) suitable fo r porcelain type bracket/stay/9 tonne insulators as per rdso drawings no. ti/drg/ohe/abd/rdso/00000/1 9/0 or latest included/and as per revised maintenance instruction no. ti/mi/0059-rev.3 for provision of anti -bird disc. drawing and specification attached in pdf. special instruction : with nuts, bolts and washers grad e-304. (i) 2000 nos. anti bird discs required of id-75 , (ii) 800 nos. anti bird discs required of id-85. [ warr anty period: 30 months after the date of delivery ] ]