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Hot stamping (press hardening or hot press forming), is a method of stamping metals like high strength steels - and has several benefits like potentially reducing weight by using thinner sheets of metal & single parts can have different strength levels which is useful for crash absorption. The problem with hot stamping is the dirty environment, which can affect the service life of gas springs. Fortunately, KALLER has a simple and effective solution: Heavy Duty Protection (HDP) covers.2021-08-30