supply of manufacturing and supply back & top involucre assembly for lhb eog non-ac coaches for rotary junction box .manufacturing and supply back & top involucre assembly for lhb eog non-ac coaches for rotary junction box .,manufacturing and supply back & top involucre assembly for lhb eog non-ac coaches for r otary junction box as per electrical department technical specification and drawings. the details of drg. ar e attached in the annexure. the supplier must provide material test reports from nabl-accredited laborato ries with the delivery. [ warranty period: 30 months after the date of delivery ] ] => limited