thodu ketti slab provide provide slab to thodu , description , stone aggregate ( single size ) : 40mm nominal size , stone aggregate ( single size ) : 20mm nominal size , coarse sand ( zone iii ) , portand cement , hire charge of concrete mixer 0 . 25 to 0 . 40 cum with hopper , vibrator ( needle type 40mm ) , sundries , laterite stone of size 35x20x20 cm , stone aggregate ( single size ) : 10mm nominal size , twisted steel / deformed bars , structural steel such as tees , angles , channels and rs joints , red oxide zinc chromate primer , adjustable telescopic prop 3m ( 2 . 02-3 . 75m ) , beam clamp 300-380 mm ( 450-1070 mm )