supply of bolster spring inner for blc wagon to rdso drg. no. contr-9404-s-7, alt. no. 8 or latest, item no. - 2 & other technical requirements conforming to rdso spec. no. wd-01-hls-1994, rev. 3 of jan-2009, read with all amendment, latest amendment no. 3 of august.2019, material gr.60si7, confirming to is 3195-1992, amend.no.2 of september 2000. confirming to is 3195-1992, amend.no.2 of september 2000.bolster spring inner for blc wagon to rdso drg. no. contr-9404-s-7, alt. no. 8 or latest, item no. - 2 & other technical requirements conforming to rdso spec. no. wd-01-hls-1994, rev. 3 of jan-2009, read with all amendment, latest amendment no. 3 of august.2019, material gr.60si7, confirming to is 3195-1992, amend.no.2 of september 2000. confirming to is 3195-1992, amend.no.2 of september 2000.,bolster spring inner for blc wagon to rdso drg. no. contr-9404-s-7, alt. no. 8 or la test, item no. - 2 & other technical requirements conforming to rdso spec. no. wd-01-hls-1994, re v. 3 of jan-2009, read with all amendment, latest amendment no. 3 of august.2019, material gr.60si 7, confirming to is 3195-1992, amend.no.2 of september 2000. confirming to is 3195-1992, amend.n o.2 of september 2000. [ warranty period: 30 months after the date of delivery ] ]