• Corporate vision to become the pipeline industry Toyota
  • Corporate mission to enhance the quality level of Chinese manufacturing
  • Business goals domestic industry first

Tag archives: "hardness testing"

Recently, Haihao Group conducted hardness tests on pipe fitting product test blocks ordered by a group of Russian customers. We would like to take this opportunity to introduce several commonly used equipment for hardness testing.Hardness testing equipment, known as hardness testers, are essenti ...

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Hardness refers to a material’s resistance to local deformation, especially plastic deformation, indentation, or scratching. Hardness testing is the most widely used mechanical performance test, categorized into indentation and scratch methods. Within indentation methods, there are static ...

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