Rail shoulder is cast in the concrete rail ties to fix the elastic rail clips. There are two types of rail shoulders available, the cast-in shoulder and the weld-on rail shoulder, both of which are used for the fixing of elastic rail clips.

The Pre-embedded Iron Base is usually made of high-quality cast iron or steel, which provides the necessary strength and durability to withstand the forces exerted by trains and maintain the integrity of the railway system. The manufacturing process involves precision casting or forging techniques to ensure the accuracy and reliability of the product.

During railway construction, the Pre-embedded Iron Base is installed in the designated position within the concrete sleeper, usually during the pouring of the concrete. Once the concrete has set, the base provides a stable platform for attaching elastic fasteners, which in turn secure the rail to the sleeper.

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