tender for set of thermoplastic polyurethane spring pads for primary spring of 3-phase locos as perref.no.1&2 of s.c.rly.drg.no.c/els/lgd/bogie/ 3/163. set consists of 02 items. set details as follows. 1)polyurethane spring pad for primary helical spring of 3-phase locos as per ref.no.1 ofs.c.rly.drg.no.c/els/lgd/bogie/3/163.-01 no. 2) polyurethane spring pad for primary helical spring of 3-phase locos as per ref.no.2 of s.c.rly.drg.no.c/els/lgd/bogie/3/163.-02 nos.