procurement of materials for mgnrega works kuduveettilkadavu to veyarathala road construction , stone for masanary work , structural steel such as tees, angles, channels and r s joists , red oxide zinc chromate primer , adjustable span eso+si ( 2.35-3.40 ) , adjustable telescopic prop 3m ( 2.02-3.75m ) , twisted steel / deformed bars , stone aggregate 20mm nominal size , stone aggregate 10mm nominal size , coarse sand , portland cement , hire charges of concrete mixer 0.25 to 0.40cum with hopper , vibrator , stone aggregate 40mm nominal size , hire charge of diesel road roller-8 to 10 tonne , stone aggregate 63mm nominal size , stone aggregate 50mm nominal size , stone chippings / screenings 10 / 11.2 mm nominal size , stone chippings / screenings 4.75 mm nominal size , stone chippings / screenings 150micron nominal size , royalty for good earth