supply of material bricks, rcc grating , rcc manhole cover and frame. etc. at municipal store of ward no 75-s / sz.- laying and jointing pvc pipe. heading 2 supply and stacking of fps bricks of class designation 75 n.s. at municipal store 3 supply of precast rcc grating with frame 500 x 450 mm 4 supply of precast rcc manhole cover & frame, hd-20 560 mm dia 5 p / f precast r.c.c. stab / grating 70mm thick manufactured with cc 1:2:4 ( 1 cement :2 coarse sand : 4 graded stone aggregate 20 mm nominal size ) reinforced with 96kg / m3 of r.c.c including lapping all four side with m.s. sheet 1.6 mm thick & fixingin position complete. ( drain covers with or without holes )