supply of improved high tensile tight lock centre buffer couplerimproved high tensile tight lock centre buffer coupler, improved high tensile tight lock centre buffer coupler with aar h type head and balanced draft gear for fitment on bg passenger coaches conforming to rdso specification no. rdso / 2011 / cg - 03, rev.3, consisting of 6 items: si.no.1. tight lock coupler head aar h type with main pin qty / set-1, si.no.2. balanced draft gear qty / set-1, si.no.3. supporting device with fasteners qty / set-1, si.no.4. manual uncoupling device qty / set-1, si.no.5. base plate with fasteners qty / set-1, si.no.6. support plate with fasteners qty / set-1. sse / bogie repair / bpl , madhya pradesh 16.00 set => limited