supply of set of bolster spring for casnub bogie.set of bolster spring for casnub bogie.,bolster spring outer for casnub 22hs (mod-1) bogie to drg. no. wd-04017 s/4 alt-5, item no.1 and to specn. wd-01-hls--94(rev.4) june.2022. [ warranty period: 60 months after the date of deli very ] ] , inner bolster suspension spring for casnub 22 hs (mod-i) bogie. drawing : rdso drg. no. wd-04017-s-04, alt.-5, item no. 2. material and specification : as per drawing and confirming to rdsos s pec no. wd 01-hls-1994 (rev. 4) of june 2022, material is: 3195 [ warranty period: 60 months after the date of delivery ] ] , bolster snubber spring for casnub 22 hs (mod-i) bogie used in bost wagon rdsos drg, n o. wd-04017-s-4, alt.- 5, item no. 3 material & specification as per drawing and conforming to rdsos spe cification. no. wd-01-hls-94 (rev.-4) of june 2022. [ warranty period: 60 months after the date of delive ry ] ]