Supply Of Traction Lever As Per Rcf Drg. No. 1267508, Ver. 01r3 And Seamless Tube Din 2448, Din 1630 St 52.4 Or Alternate Material Is:1161-2014reaffirmed 2019 Hfs Yst-310 For Drg. No. 1268348 And Mdts-150 Rev. Nil & Mdts-166, Rev. 2..