tender for repair kit for brake cylnder [355mm] consisting of 2 items .sl no.1:wear ringto rdsos drg no wd-92051-s-09,alt.2 item 3 qty per kit 1 no. & sl no.2: piston packing tordsos drg.no.wd-92051-s-10,alt.nil qty per kit 1 no. material & specification : rdsos specn no.-02,abr-2002, amdt.-3/2010 .