supply of one set of single ferrule fittings requi [one set of single ferrule fittings required for lhb coaches consisting of following: (1)union nut for 28mm od pipe qty.- 1 nos. per set (2) ferrule for 28mm od pipe qty- 1 nos. per set. as per mdst-108 or latest (material to be procured from rcf approved sources)] , one set of single ferrule fittings required for lhb coaches consisting of following: (1)union n ut for 28mm od pipe qty.- 1 nos. per set (2) ferrule for 28mm od pipe qty- 1 nos. per set. as per mdst-10 8 or latest (material to be procured from rcf approved sources) [ warranty period: 30 months after the d ate of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]