tender for set of helical springs for primary suspension of wag7 locos comprisingof 1) outer coil spring to rdsos drg no skvl - 039, alt-6 or latest = 1 no (group-bcategory only), 2) inner coil spring to rdsos drg no skvl - 037, alt-6 or latest = 1 no(group-b category only) (material specification to rdsos spec. no. mp.o.4900.12, rev-04 ofjan.2019).
