Rail Insulators are also called railway insulation, railroad insulator, track nylon insulator, rail insulating liner, they are installed on the steel rails and tie plates to adjust rail gauge and provide electrical insulation for the railway rails, railroad clips and rail bolts, rail shoulders from the interior of a concrete sleeper. Its function is as like as rail pad, but due to it is installed on the rail foot, so it is thicker than the rail pad.

Rail plastic dowel is one part of rail fastening system, it should be pre-inserted into the concrete sleeper separately before assembling the rail fastening system parts, so it can be considered as the fastening foundation.

Railway Sdu25 plastic dowel is one part of rail fastening system, it should be pre-inserted into the concrete sleeper separately before assembling the rail fastening system parts, so it can be considered as the fastening foundation.

Rail plastic dowel is one part of rail fastening system, it should be pre-inserted into the concrete sleeper separately before assembling the rail fastening system parts, so it can be considered as the fastening foundation.

E2003 Resilient fastening systems shall be used with concrete sleepers and bearers.

Type I rail fastening system is suitable for 50kg/m and 60kg/m rails that fixed on concrete shoulders