bids are invited for purchase of defense materials 0.5 mm thick profile g.s tin sheet size3.6 x 10 ft , top ridge 2 ft wide 10 each , 4 inch dia round g.i pipes 20 ft length each , 3 inch dia round g.i pipes 20 ft length each , 2 inch dia round g.i pipes 20 ft length each , 2x2 inch ms square pipes 20 ft length each , 2.5 x 1 inch ms pipes 20 ft length each , 1.6 mm thick ms sheet , 2x2 inch l shaped iron angles 10 inch each , iron door including complete fitting and accessories size 3x6.5 ft , self drilling screws with rubber washer. , welding rods , 4 inch iron cutting blades. total quantity : 260