supply of supply of different spare parts of dellner make high tensile tight lock aar-h type centre buffer couplersupply of different spare parts of dellner make high tensile tight lock aar-h type centre buffer coupler, supply of different spare parts of dellner make high tensile tight lock aar-h type centre buffer coupler ( c.b.c ) with balanced draft gear for lhb coaches of indian railways. one set consists as follows-1 ) knuckle as per dellner part no. 1020210- qty 01 no. 2 ) lock as per dellner part no. 1030474- qty 01 no. 3 ) knuckle thrower as per dellner part no. 1030475- qty 01 no. 4 ) rotation lock lift assembly as per dellner part no. 1030604- qty 01 no. 5 ) knuckle pivot pin as per dellner part no. 1030605- qty 01 no. 6 ) support pin as per dellner part no. 1030606- qty 01 no. as per annexure a.