external periodical services and misc works at dgre, rdc, under age (i) r and d, manali; 1. concrete (a) integral water proofing compound. 2645 (b) plywood for concrete shuttering work. 4990 2. joinery (a) wooden flush door shutters solid core type. 2202 (part-i) (b) ply wood for general purpose. 303-1975 3. building hard ware (a) steel butt hinges 1341 (b) non ferrous butt hinges 205 (c) ferrous tower bolts 204 (part-i) (d) non ferrous tower bolts 204 (part-ii) (e) door handles (non ferrous) 208 (f) parliament hinges (ferrous) 362 (g) hydraulically operated door closures. 3564 (h) continuous piano type 3818 (i) sliding door bolts (non ferrous) 2681 (j) tee and trap hinges 206 (k) mild steel sliding door bolts 281 4. steel and iron work steel doors, windows, and ventilators 1038 5. flooring (a) white portland cement 8042 (b) cement concrete flooring tiles 1237 6. water supply, plumbing drains and sanitary appliances (a) concrete pipes with or without reinforcement. 458 (b) flushing cisterns for water closets and urinals other than plastic 774 (c) cast copper alloy screw down bib tap and stop valves 781 (d) galvanised mild steel tubes 1239(part-i) (e) galvanised mild steel tube fittings 1239(part-ii) (f) sand cast iron spigot and socket soil waste and ventilating pipes 1729 and fittings (h) ball valves (horizontal plunger type) including floats for water 1703 supply purpose. (i) cast iron manhole covers and frames 1726 (j) ac pressure pipes 1592 (k) automatic flushing cisterns 2326 .... more in document