tender for kit for constant contact polyurethane side bearer pad design a of rdsospec.wd-38-misc-2004,rev.1 of jan08 and amendment no.2 of sept.2016 for casnub 22 hsbogies consisting of 3 items to firms drg.no.aal-021101,alt.8. sl.no.1. poly rings itemno.5, qty/kit - 3 nos., 2. round plate (steel spacer with stopper spring) item nos.3 & 6qty/kit-2 nos., 3. pu lining (sleeve) item no.4 qty/kit-2 nos.