supply of manual uncoupling arrangement assembly & manual uncoupling devicemanual uncoupling arrangement assembly & manual uncoupling device,manual uncoupling arrangement assembly (for high tensile tight lock centre b uffer coupler with aar ?h? type head and balanced draft gear) to sanrok drawing no. 1ed-3 691 and confirming to rdso specification no. rdso/2011/cg-03 (rev-3). [ warranty period: 30 m onths after the date of delivery ] ] , manual uncoupling device for aar h type cbc coaches to sanrok drg. no. 1ed-1017 to rds o spec. no. rdso/2011/cg-03 (rev. 1) or latest, make- sanrok. [ warranty period: 30 months after the d ate of delivery ] ]