tender for purchase of material pls refer tender document--hydraulica cocoat parvas block thickness 80mm (pattern square size 200x200 mm thickness bu mm) 151 standard (daver block color as per demand cement ppc (isi standarded) 50kg bag (major brand) cement opc (isi standarded) 53 grade 50kg bag(major brand) cement opc (isi standarded) 43 grade 50kg bag(major brand) chemical cement 25kg (major brand) sand narmada river high quality black sand silt free high quality clay free stone crushed sand msand(is 383-1970) gsb (granular sub-base) material silt free crusher dust aggrit 10 mm black basalt soil 20 mm black basalt aggrit 40 mm black basalt aggrit 60 mm black basalt gitti 90 mm black basalt