Supplying Pressed steel sheet frames (chowkhat) consisting of 18gauge (1.25 mm thick steel sheet of the specified section, including iron lugs (hold fast) iron hinges conforming to PWD specification including bolts for fixing stops lock notch provision for receiving tower bolts and finished with 1 primer coat approved quality, fixed in position excluding the cost of cement concrete 1:3:6 for fillings in the frame and cement concrete 1:2:4 for lugs complete Doors and windows frame of size 161mm x 60mm with 40 mm wide double rebate weighing 4.05 kg per meter.