supply of supply of expansion type terminal connector for 25kv, 60mm dia terminal for traction power transformer ri no. 11221, 11222, 11223 & 11224 complete set as per rdso drg no. eti/psi/p/11220 rev-d or latest.(warranty period :30 moths from the date of delivery .)material must be procured from core approved vendors. the bidder should mandatorily submit tender specific authorization letter from core approved vendor with their offer , otherwise their offer will be summarily rejected . offers received with out make/brands or with other vague mentions likesupply of expansion type terminal connector for 25kv, 60mm dia terminal for traction power transformer ri no. 11221, 11222, 11223 & 11224 complete set as per rdso drg no. eti/psi/p/11220 rev-d or latest.(warranty period :30 moths from the date of delivery .)material must be procured from core approved vendors. the bidder should mandatorily submit tender specific authorization letter from core approved vendor with their offer , otherwise their offer will be summarily rejected . offers received with out make/brands or with other vague mentions like,supply of expansion type terminal connector for 25kv, 60mm dia terminal for traction power transformer ri n o. 11221, 11222, 11223 & 11224 complete set as per rdso drg no. eti/psi/p/11220 rev-d or latest.(warranty period :30 mot hs from the date of delivery .)material must be procured from core approved vendors. the bidder should mandatorily submit tender specific authorization letter from core approved vendor with their offer , otherwise their offer will be summarily rejected . offers received with out make/brands or with other vague mentions like as per tender will be summarily reject ed. [ warranty period: 30 months after the date of delivery ] ]