supply of corten steel underframe (lwcbac)corten steel underframe (lwcbac),corten steel underframe complete for lwcbac coaches with stainless stee l sole bar to drg.no. 85611001, col.i, alt h. sole bar shall confirm to rdso specn.ck-20 1 corrigendum no-01 & amendment no-01 grade x2crni12 with yield strength of minimum 350 mpa the schedule of technical requirement as per icf/md/specn.147, rev-02 with ame ndment-01. special condition : packing condition as per drg.no. icf/j&t/misc-2487 altb. the underframe should be supplied as normal side up and side bearer side down. [safety ite m] [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]