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The Left Behind Washers (DIN 127, 128, 137, 6797, 6798, and 7980)

The Left Behind Washers (DIN 127, 128, 137, 6797, 6798, and 7980)

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Date: 11/13/19

Objectives:

  • Viewers will learn which washers have not been given an ISO counterpart
  • Viewers will learn which washers have had their standards totally withdrawn and why
Download Lesson Plan