supply of locking bolt & its bracket for flap door arrangement. drawing no. : s.e.railway's drg. no . grc/w-327, alt. nil. material and specification: is: 2062 - 2011 (rev. 7), amend. no.1 of nov. 2012, g r. e250cua. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] divisional gsd adra, ser