supply of air brake hose coupling assembly for brake pipe [of length 790 mm], conforming to appendix f of rdso specn. no. 02-abr-02, amendment. no.1 of feb 07 & amendment no.4 of sept. 2016 to rdso drg no. sk-73547 alt.13. note-the protection cap provided on palm end side should be of thickness 3.5mm to 4 mm and cap should be in red colour. firm should ensure before supply. , air brake hose coupling assembly for brake pipe [of length 790 mm], confor ming to appendix f of rdso specn. no. 02-abr-02, amendment. no.1 of feb 07 & amendment n o.4 of sept. 2016 to rdso drg no. sk-73547 alt.13. note-the protection cap provided on p alm end side should be of thickness 3.5mm to 4 mm and cap should be in red colour. fir m should ensure before supply. [ warranty period: 36 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]