tender for set of primary helical spring for wag-9 h loco to clw specification no. clw/ms/3/008 alt3 orlatest comprising primary helical spring (outer) to abb drg.no-ibo11-00843-003 or latest & primary helicalspring (inner) to abb drg no- 1bo11-00843-001 or latest ( 02 items 02 nos)spec .