tender for supply cost of structural steel and rolled steel materials of embedded parts consisting of sill beam, guide, track arrangement etc. suitable for vent size of 1500mm x 1680mm and structure height about 4900mm including 5% wastage material complete in all respects with all leads and lifts for smooth operation as per specification and direction of engineer-in-charge. , fabrication cost of the above mentioned embedded parts with all accessories including machinery, fixtures, labour, cutting, aligning, welding, cleaning, finishing, including consumables,complete in all respects with all leads and lifts for smooth operation as per specification and direction of engineer-in-charge. , supply cost of structural steel and rolled steel materials of vertical gate consisting of skin plate, end vertical girders, horizontal girders, bronze pads, lifting brackets, seal arrangements etc. suitable for vent size of 1500mm x 1680mm complete in all respects with all leads and lifts for smooth operation as per specification and direction of engineer-in-charge. , fabrication cost of the above mentioned gate leaf with all accessories including machinery, fixtures, labour, cutting, aligning, welding, cleaning, finishing, including consumables, complete in all respects with all leads and lifts for smooth operation as per specification and direction of engineer-in-charge.. , supply cost of structural steel and rolled steel materials of steel hoist bridge consisting of pedestal, gear box frame, main beams, cross beams etc. suitable for vent size of 1500mm x 1680mm complete in all respects with all leads and lifts for smooth operation as per specification and direction of engineer-in-charge. , fabrication cost of the above mentioned steel hoist bridge with all accessories including machinery, fixtures, labour, cutting, aligning, welding, cleaning, finishing, including consumables, complete in all respects with all leads and lifts for smooth operation as per specification and directio