supply of brake pipe 15 mm bore, 1316 mm long, black steel heavy duty seamless as per is:1239, part-1/2004 (reaffirmed 2015) with amdt-6 of june-2021, table-5 clauses 8.1 & 8.1.1 for bg main line coaches (with bogie mounted brake cylinder) to rdso sketch-98036, alt-1, item-3 and conforming to rdso spec. no. 04-abr-2019 (rev-02 of dec 2019)brake pipe 15 mm bore, 1316 mm long, black steel heavy duty seamless as per is:1239, part-1/2004 (reaffirmed 2015) with amdt-6 of june-2021, table-5 clauses 8.1 & 8.1.1 for bg main line coaches (with bogie mounted brake cylinder) to rdso sketch-98036, alt-1, item-3 and conforming to rdso spec. no. 04-abr-2019 (rev-02 of dec 2019),brake pipe 15 mm bore, 1316 mm long, black steel heavy duty seamless as per is:1239, part-1/2004 (reaffirmed 2015) with amdt-6 of june-2021, table-5 clauses 8.1 & 8.1.1 for bg main line c oaches (with bogie mounted brake cylinder) to rdso sketch-98036, alt-1, item-3 and conforming to rd so spec. no. 04-abr-2019 (rev-02 of dec 2019) [ warranty period: 30 months after the date of deliver y ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted : max 8 lacs ] ]