ARTICULATED SPHEROLASTIC RUBBER BEARING OF M/ s SANROK MAKE FOR HIGH TENSILE TIGHT LOCK CENTER BUFFER COUPLER WITH AAR- H TYPE HEAD AND BALANCED DRAFT GEAR AS PER SANROK DRG. No. 1ED- 1023 AND CONFORMING TO RDSO SPECIFICATION No. RDSO/ 2011/ CG- 03 REV- 1.