tender for bolster spring inner for blc wagons drawing no. contr-9404-s,alt-7, item no.2, spec.no. wd-01-hls-94 (rev-3), amnd no. 3. gurantee (i) the spring shall be guaranteed for a perid of five years from thedate of delivery or for a perid of four years from the date of actual fitment, whichever is earlier (for details pleasesee specification no. wd-01-hls-1994, rev.3,amend no.3). (ii) stage inspection is required for this item (rdso inspection) .