supply of pipe bracket with control reservoir for air brake wagons rdso drg. no. wd9-7951-s/ 10, alt no.3 rdso's specn. no.02-abr-02, appendix-a1, with amendment no.4 of sep 2016. [ warran ty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] - pipe bracket