As one of the rail components, rail joint’s function is different from other rail components. Rail joint is a flat metal plate usually used to connect adjacent two rails by a number of rail bolts or railroad spikes.

The rail fastening system is an important part of the railroad track structure composed of various rail fasteners (OTM materials). Its main function is to firmly fix the rails on the sleepers or track plates to ensure the stability of the rails.

Rail clip is a component of railway fastening systems. It is used to fix the rails to underlying baseplate and sleepers. Its main function is to prevent the rail from moving.

GB heavy rail is a heavy rail that complies with China's national standard (GB). It is mainly used for important lines such as trunk railways, heavy-load railways and high-speed railways. Its rail type is usually more than 50 kilograms per meter.