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  • Aluminum Alloy

    The accompanying document provides a list of materials that Strötzel Oberflächentechnik GmbH & Co. KG is able to nickel-plate, as well as those it cannot.

  • General Terms and Conditions

    The accompanying General Terms and Conditions of Strötzel Oberflächentechnik GmbH & Co. KG apply exclusively. Open the PDF for more information and our detailed General Terms and Conditions.

  • Hardness Comparison Table

    The accompanying PDF presents a comparison between Vickers hardness HV 30 and Rockwell hardness HRC.

  • ISO 9001:2015 Certificate (en)

    The quality management system at Strötzel Oberflächentechnik GmbH & Co. KG was audited and certified in 2024 according to ISO 9001:2015 standards.

  • Opportunities within the Parzer Group

    By combining our expertise within the Parzer Group, we’re able to deliver the right solution for any challenge in surface finishing and processing – regardless of size, material, or specifications.

  • Resistance List

    This document provides an overview of the resistance of High-Phos coatings – Ni-P(12) in various environments. At the end of the document, you’ll find the classification of the different categories.