set of lock assembly for 3 phase locomotives consisting of 1 interlock assembly for cab doors as per clw specification no clw ms 3 111 alt 5 and drg no 1 209 09 133 021 alt 2 qty 02 nos lh and 02 nos rh 2 lock assembly for machine room do ors as per clw drg no 1209 09 133 071 alt 1 qty 02 nos warranty period 30 months after the d ate of delivery