Tender For supply, installation and maintenance (24 months) of aluminum frame hangar 30m wide span, (dome type) size- 30wx40lx5m, columns-252x120x5/6mm anodized structure finish with korean opaque membrance 850 gsm roof and 650 gsm translucent fire retardant tensile membrane with 5 yrs warranty with aluminium doors 2 nos., motorised metal sheet shutter size 4x4.5 m-02 nos at raj bhawan campus, patna