tender for cut off angle cock with vent with reducing bush 1-1/4 for air brake coaches to rdso drg. no.wd-88123/s-01, item no.-1 to 13 & with reducing bush, alt no.-2 (two) conforming to rdso specn. no. 02-abr-02 appendix-d, with amendment no.3 of april 2010 and amendment no. 4 of september 2016.
