procurement of 6 type of spares for cbc --toggle pos.5 of rdso drgno. sk-62724for indian cbc aar type e coupler with modified f shank lock lift lever hookpos.7 of rdso drg.no. sk-62724, for aar type e coupler with modifiedf shank lock lift lever connectorpos.6 of rdso drg.no.sk-62724 for aar type e coupler with modified fshank knuckle pos.2 of rdso drg.no.sk 62724for indian cbc aar typee coupler lock pos.8 of rdso drgno.sk-62724for indian cpc aar type e coupler knuckle throwerpos.9 of rdso drg.no. sk 62724, for modified non-transitional cnetrebuffer coupler
