supply of 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.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.,articulated spherolastic rubber bearing of m/s sanrok make for high te nsile tight lock center buffer coupler with aar-h type head and balanced draft ge ar as per sanrok drg. no. 1ed-1023 and conforming to rdso specification no. rdso/201 1/cg-03 rev-1. [ warranty period: 30 months after the date of delivery ]