supply of improved high tensile tight lock center buffer coupler with aar -h - type head and balanced draft gear for fitment on bg passenger coachesimproved high tensile tight lock center buffer coupler with aar -h - type head and balanced draft gear for fitment on bg passenger coaches, improved high tensile tight lock center buffer coupler with aar -h - type head and balanced draft gear for fitment on bg passenger coaches confirming to rdso specification no. rdso / 2011 / cg-03. ( rev.3 ) consisting of 6 items. sl. no.1. tight lock coupler head aar - h - type with main pin- qty-1 no., sl. no.2. balanced draft grear - qty-1 no., sl. no.3. supporting device with fasteners- qty- 1 no., sl. no.4. manual uncoupling device- qty-1 no., sl. no.5. base plate with fasteners- qty-1 no., sl. no.6. support plate with fasteners- qty-1 no. mech stores depot-ubl karnataka 33.00 set , swr