Supply of Air Brake Pipe And Pipe Fitting Bp For Boxnhl Wagon As Per Drg.No. Wd-09082-S-02, Item No. 1, 3, 5, 6, 7 Alt-01 Or Latest As Per Annexure Attached. Material As Per Rdso Letter No. Mw/Apb Dt. 02.08.2019 As Seamless To Is: 1239 Part-I Heavy Grade Or Astm A-106 Gr. A.
