We provide Tender Bidding Support for Supply of Set Of Air Brake Pipes With Flanges & Sockets Welded Assembly For Boxn Wagons Consisting Of Following Items As Per Rdso Drawing & Other Technical Requirements Confirming To Rdso Specification No.04-Abr-2002 Of April 2003, Read With All Amendment, Latest Amendment No.8 Of September 2016, Material Specification Of Pipes As Under, As Per Rdso Letter No Mw/Apb Dt.02.08.2019 Material Speification As Per Annex-A Pipes 32 Nb- Seamless To Is: 1239 Part-I Heavy Grade Or Astm A-106 Gr.A Pipes 20 Nb- Stainless Steel To Astm-A 312 Schedule 40 S Gr.Tp 304 Erw Flanges & Socket Stainless Steel To Is: 6911-1992 X 04 Gr.19 Ni 9 304 Si For 20 Nb Branch Pipe And Is: 2062-2011, Amendment 1 Of Nov.2012, Gr.E250 A For 32 Nb Feed Pipe.As Per Annexure B