supply of supply of articulated spherolastic rubber bearing for high tensile tight lock centre buffer coupler with aar h type head and balanced draft gear to sanrok drawing no. 1ed-4454 and confirming to rdso specification no. rdso/2011/cg-03 (rev-3)supply of articulated spherolastic rubber bearing for high tensile tight lock centre buffer coupler with aar h type head and balanced draft gear to sanrok drawing no. 1ed-4454 and confirming to rdso specification no. rdso/2011/cg-03 (rev-3),supply of articulated spherolastic rubber bearing for high tensile tight lock c entre buffer coupler with aar h type head and balanced draft gear to sanrok drawing no. 1ed-4454 and confirming to rdso specification no. rdso/2011/cg-03 (rev-3) [ warranty period: 30 months after the date of delivery ] ]