The Iron bars which are Square in shape are termed as Square Bars. Square bars are very useful in making things like window frames,Door Frames etc. Square Bars are also used in cranes gantry, bullock carts axles, conveyors, truck trailers and tippers, bright bars, anchor bolts and many more engineering industries. It is available in different sizes and Chemical Copmposition(Grades).It is available largely in Punjab,Chattisgarh,Jharkhand,Orrisa etc.