supply of one set of ferrule fittings required for lhb coaches , one set of ferrule fittings required for lhb coaches consisting of following: (1) street elbow 1 bsp(f) x 1 bspt(m) to drg no.icf/std 3-5-129 alt. a item no.-4 qty.- 1 nos. per set (2) pipe nipple 1 b spt(m) x 150 mm long to astm a312 schedule 80 ss-304 qty- 1 nos. per set [ warranty period: 48 mon ths after the date of delivery ] ] , one set of ferrule fittings required for lhb coaches consisting of following: (1) street elbow 1 bsp(f) x 1 bspt(m) to drg no.icf/std 3-5-129 alt. a item no.-4 qty.- 1 nos. per set (2) pipe nipple 1 b spt(m) x 150 mm long to astm a312 schedule 80 ss-304 qty- 1 nos. per set [ warranty period: 48 mon ths after the date of delivery ] ]