NG Series AIO Solar Street light 15W, 7 mtr HDG Hot Dip Galvanizing Octagonal, Cement in polythene bags 50 kgs each grade 43 OPC, IS 8112 1989, Coarse Sand confirming to IS 383 1970, 2nd revision, from natural sources, Crushed Stone Aggregate 20 mm graded confirming to IS 383 970