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2. DIN rail - Wikipedia

   en.wikipedia.org/wiki/DIN_rail

   A DIN rail is a metal rail of a standard type widely used for mounting circuit breakers and industrial control equipment inside equipment racks.These products are typically made from cold rolled carbon steel sheet with a zinc-plated or chromated bright surface finish.

3. List of DIN standards - Wikipedia

   en.wikipedia.org/wiki/List_of_DIN_standards

   DIN 332-4: Centre holes for rail vehicles axles: Active: DIN 332-7: Machine tools; 60° centre holes; dimensioning ... DIN 66264-1: Industrial automation systems and ...

4. Deutsches Institut für Normung - Wikipedia

   en.wikipedia.org/wiki/Deutsches_Institut_für...

   E DIN # is a draft standard and DIN V # is a preliminary standard. DIN EN # is used for the German edition of European standards. DIN ISO # is used for the German edition of ISO standards. DIN EN ISO # is used if the standard has also been adopted as a European standard., Some of the DIN standards date back to the time of Nazi Germany.

5. 19-inch rack - Wikipedia

   en.wikipedia.org/wiki/19-inch_rack

   The distance of the right edge of the right mounting rail to the left edge of the left mounting rail is 535 millimetres (21.1 in). As 535 mm is very close to 21 inches, these racks are sometimes called 21-inch racks. The gap between the posts is 500 millimetres (19.69 in).

6. Steel grades - Wikipedia

   en.wikipedia.org/wiki/Steel_grades

   Steel for rail use: Minimum Yield Case: H: High Tensile Strength Flat products: Minimum Yield Case: If followed by T then the given mechanical property is minimum tensile strength D: Flat Products for Cold Forming: Followed by C, D or X and two numbers characterising steel T: Tinmill Products: Nominal Yield Case: M: Electrical Steel: Number ...

7. National Register of Historic Places listings in Grainger ...

   en.wikipedia.org/wiki/National_Register_of...

   Location of Grainger County in Tennessee. This is a list of the National Register of Historic Places listings in Grainger County, Tennessee. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Grainger County, Tennessee, United States. Latitude and longitude coordinates are ...