tender for distributor valve with relay valve including adopter along withisolating cock, pipe bracket with control reservoir and gasket for air brakesystem of passenger stock to rdso specn no.c-k-209, amendment slip no. 2 as perdrg.no. --- specn: rdso specn no.c-k-209, amendment slip no.1 of march07 withcorrigendum of april.07 .