tender for cut off angle cock with vent for air brake wagons to rdsos drg. no. wd-88123-s-01, alt-2,details of parts as per drg. no. wd-88123-s-2,alt-6 & other technical requirements conforming to str no. 02-abr-02, appendix- d, read with all amendments., latest amendment. 4 of sept-2016 .