bolster liner for casnub 22 bogie. drawing no: rdsos drg. no. wd-89067-s-4, alt. 13, item no. 2. material and specification: as per drawing and conforming to rdsos spec. no. wd-21- casnub-22-nlb-bogie-93 (rev. 2) july 02, with amend. no. 6 of july 2020.
