Tie bars are the metal rods, which are located at the front of passenger room providing full support to the instrument panel and steering wheel
. These bars are mainly used for linking, tying, joining, fastening or binding various parts of a vehicle. Besides automobiles, tie bars are also used in the construction of bridges, towers, cranes, tanks and industrial buildings. Tie bars used in automobiles increases chassis rigidity, stability and even improves the function of steering. Steel is the widely used material in the construction of tie bars. Other than steel, different metals that can be used for manufacturing tie bars are iron, cast iron, stainless steel, brass, bronze, copper, aluminum, carbon steel, fiberglass and titanium. Taipei, Sheffield, Shijiazhuang, Duncan, Taichung Hsien, Shenzhen, Frankfurt, Detroit, Munich, Minneapolis are some of the key production centers of tie bars in the world.