supply of high tensile aar h type tight lock coupler with transition screw coupling etc.high tensile aar h type tight lock coupler with transition screw coupling etc.,high tensile aar h type tight lock coupler with transition screw coupling and its associated components for fitment on bg passenger coaches of indian railways to rdso specification no. rdso/2009/c g-22, rev.1 and also confirming to rdso specification no. rdso/2011/cg-03, rev.3. one coupler set shall c onsist of the following. 1. tight lock coupler head with transition screw coupling and its associated compon ents -01 no. 2. balanced draft gear with pivot pin-01 no. 3. supporting device for coupler head with fastene rs-01 no. 4. manual coupling device with fasteners-01 no. 5. rear carrier plate for draft gear with fasteners -01 no. 6. front carrier plate for draft gear with fasteners-01 no. [ warranty period: 72 months after the d ate of delivery ] ] sse/draw and buffering gear, maharashtra 16.00 set