tender for helical spring(inner) for bolster suspension (modified) of emu tr. coaches.icf drg. no. dc/emu -0-5-008 alt-h/2,item-1,col-1 and to rdsos spec. no. wd-01-hls-1994 rev.3 ofjan2009 with amendment no.03 of august 2019. material-is:3195.
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