tender for 19 - frocowar supply work in municipality, dhariyawad.- 2 providing and fixing of reinforced ferro-cement drain covers designed for a class loading duly marked on cover with adequate steel reinforcement having thickness 75mm to 150mm anti corrosive bitumen painted m.s. plate , rim and m.s. lifting hooks, admixtures like plasticizer, bond improving compound, shrinkage, resistance compound, abrasion resistant complete as per approved design etc. 3 standard size 600x800mm (75mm thick) for span 300 to 450mm 4 standard size 1000x800mm (100mm thick) for span 451 to 700mm 5 standard size 1500x600mm (125mm thick) for span 701 to 1200mm