supply of day to day repair/maintenance of work in the area of ward no. 88-n, delhi-gate, city-sp zone. supply of day to day repair/maintenance of work in the area of ward no. 88-n, delhi-gate, city-sp zone. , stone agg. 10mm to 20mm , coarse sand , sw gully trap, p-type 100x100mm , sw pipes 100mm dia 60cm long , sw pipes 150mm dia 60cm long , precast rcc gully grating cover and frame 500x450mm size horizontal. , supply and stacking of precast rcc grating cover (500x450mm dia) , supply and stacking of precast rcc manhole cover with frame hd-20, circular shape 560mm dia and approved quality. , precast r.c.c. manhole covers only (circular type 560mm dia) , precast rcc manhole cover with frame (rectangular 600x450mm dia) , precast r.c.c. manhole cover (rectangular 600x450mm dia)