tender for isolating valve switch complete for wsf type ep brake controller ofemu/memu/demus as per m/s wsf part no. c 75256/1 or m/s recon drg. no. rec/1061 as per er p.o.no. 20171245101806 dated 22.02.2018 specification - m/s wsf part no. c 75256/1 or m/s recon drg. no.rec/1061 .