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The HEF Group has been a global leader in the science of tribology for more than 50 years andoffers innovative nitriding surface treatments and PVD thin-film coating solutions for corrosion wear and friction reduction of automotive and industrial machinery HEF is active in more than
The HEF Group has been a global leader in the science of tribology for more than 50 years andoffers innovative nitriding surface treatments and PVD thin-film coating solutions for corrosion wear and friction reduction of automotive and industrial machinery HEF is active in more than
