supply of nei make spacer for aar approved class e ctrb (6x11).nei make spacer for aar approved class e ctrb (6x11).,nei make spacer for aar approved class e ctrb (6x11).drg. no. : nei drg.no. pesd-6085 narrow rev-d or latest part no.3. mat. & spec.: as per drawing and conforming to rdsos str no. ab/rb-40-2016 (rev. 2) of june-2021 or latest. (out of total quantity of 1200 nos, requirement of spacer, w idth size 38.700mm-38.750 mm is 200nos; width size 38.750mm-38.800 mm is 300 nos.; width size 38.80 0mm-38.850 mm is 350 nos & width size 38.850mm-38.900 mm is 350 nos.) [ warranty period: 30 mont hs after the date of delivery ] ]