supply of head stock for lhb type coach (with arrangement of biological tank),head stock for lhb type coach (with arrangement of biological tank),,head stock for lhb type coach (with arrangement of biological tank), to drawing /specif ication no.rcf drg.no.le11460_1 to 4, alt. nil,sprcification: mdts-21261, rev-03, the material of the top flange (drg.no.le11284 & le11285) should be as per rdso/spec.ck201,designation / gradex2cr ni12(ferritic steel).stage inspection: as per mdts-21261,rev-03 dt.20.03.2020, in stage inspection cla use 16(i) is not to be followed as these two items are sub part of front part, not the sub part of head s tock, [ warranty period: 84 months after the date of delivery ] ] => limited