supply of air brake hose coupling assemblyair brake hose coupling assembly,air brake hose coupling assembly for brake pipe, ( of length 790 mm) conforming to appendix f of rdso spec. no. 02-abr-02, amend. no. 01 of feb07 & amendment- no. 4 of sept. 2016, to rdso drg no: sk - 7 3547, alt: 14. note: the protection cap provided on palm end side should be of thickness 3.5 mm to 4 mm and cap sho uld be in red colour . firm should ensure before supply. [ warranty period: 36 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]