tender for bolster spring outer for blc wagon to rdsou2019s drg. no. contr.-9404-s-7, alt- 7, item -1& other technical requirements conforming to rdso spec.wd-01-hls-1994, (rev.3) of jan.u201909, readwith all amendment, latest amendment no.3 of august.2019, material gr.60 si7, confirming to is 3195-1992,amend.no.2 of september 2000.
