tender for manufacture, supply and delivery of sluice valve materials required for maintenance of water supply (annual maintenance) in nalgonda municipality--1. providing gravel base at omc to obtain 98% proctors density 2. providing, laying, spreading and compacting stone aggregates (graded metal) 3. cleaning of existing wbm surface 4. cleaning of existing b.t surface 5. providing and applying tack coat over prepared surface 6. providing and laying bituminous macadam 7. providing and laying and consolidation of crushed stone aggregate as per built up spray grout 8. providing and laying single coat surface dressing 9. providing and laying open graded premix carpet 10. providing and laying mix seal surfacing 11. providing, laying, consolidation semi dense bituminous concrete 12. providing, laying b.t surface dressing / b.t wearing coat 13. providing and laying bituminous seal coat with 6mm chips 14. v.c.c for abutments, piers and wing walls 15. vrcc for wearing coat 16. providing hysd fe 415 grade bars / mild steel fe 250 grade bars 17. c.r.s masonry for abutments and piers 18. flush pointing to crs masonry 19. collection of metal road works 20. c. c roads