installations of chairs at nzp conference room at krishnagar in the district of nadia , supplying, fiting and fixing of auto tipup machanism chai , supplying, fiting and fixing of auto tipup machanism chair made of rectangular ms-frame with following specification - i) seat & back with molded foam. ii) density 40-45kg./cum. iii) seat thickness 75mm and back thickness 50mm. iv) seat size 23x21 and back rest 20x18. v) chair back with curved shell for spine comfort. vi) chair with fixed arm and polished with color as per choice. vii) chair height from floor to top of head rest 41. viii) chair head rest curved at the corner. ix) upholstered with laminated fabric (fire rated), x) color- as per choice of the authority. xi) seat height from floor 41. xii) all metal surfaces/structure of ms and powder coated with thickness 40-50 microns.