supply of 1. to be procured from authorised approved source of oem or its authorised dealers only. 2. material should be supplied with warranty certificate. 3. firm should clearly mention the make and the detailed specification of the material in their offer.4. supplier should submit the credentials of previous supplies for the same item1. to be procured from authorised approved source of oem or its authorised dealers only. 2. material should be supplied with warranty certificate. 3. firm should clearly mention the make and the detailed specification of the material in their offer.4. supplier should submit the credentials of previous supplies for the same item,carbon brush holder assembly suitable for daulatram make bkbl to emd part no. 5387140 of hhp locomotive. make: daulatram, emd or similar [ warranty period: 30 months after the date of deliv ery ] ]