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dejex spring is a new type of elastic component that uses high-pressure nitrogen as the working medium. It features compact size, high spring force, long stroke, smooth operation, precision manufacturing, long service life (one million cycles), flat force curve, and no need for pre-loading. It performs tasks that are difficult for conventional elastic components such as metal springs, rubber, and air cushions. It simplifies mold design and manufacturing, facilitates mold installation and adjustment, extends mold service life, and ensures stable product quality. It can also be designed as a nitrogen spring system to operate as part of the mold, enabling constant pressure and delayed action within the system.