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  2. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    total indicator reading; total indicated run-out: For measurements of eccentricity and other deviations from nominal geometry TOS: top of steel: TOL: tolerance, tolerancing: TSC: theoretical sharp corner(s) See discussion at SC and POI. TY: type: For an explanation of "type" abbreviated as "TY", see the example given at "CL" meaning "class ...

  3. Steel - Wikipedia

    en.wikipedia.org/wiki/Steel

    Steel production (in million tons) by country as of 2023. The steel industry is often considered an indicator of economic progress, because of the critical role played by steel in infrastructural and overall economic development. [65] In 1980, there were more than 500,000 U.S. steelworkers. By 2000, the number of steelworkers had fallen to ...

  4. List of proofreader's marks - Wikipedia

    en.wikipedia.org/wiki/List_of_proofreader's_marks

    Meaning Example of Use Dele: Delete: Pilcrow (Unicode U+00B6) ¶ Begin new paragraph: Pilcrow (Unicode U+00B6) ¶ no: Remove paragraph break: Caret [a] (Unicode U+2038, 2041, 2380) ‸ or ⁁ or ⎀ Insert # Insert space: Close up (Unicode U+2050) ⁐ Tie words together, eliminating a space: I was reading the news⁐paper this morning ...

  5. Steel grades - Wikipedia

    en.wikipedia.org/wiki/Steel_grades

    EN 10027-1 steel grade designation system. European standard steel grade names fall into two categories: [1] Steel specified by purpose of use and mechanical properties. Steel specified by chemical composition. The inclusion of a letter 'G' before the code indicates the steel is specified in the form of a casting.

  6. Unified numbering system - Wikipedia

    en.wikipedia.org/wiki/Unified_numbering_system

    The Unified Numbering System for Metals and Alloys (UNS) is an alloy designation system widely accepted in North America.Each UNS number relates to a specific metal or alloy and defines its specific chemical composition, or in some cases a specific mechanical or physical property.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Reliance Steel (RS) Upgraded to Buy: What Does It Mean for ...

    www.aol.com/news/reliance-steel-rs-upgraded-buy...

    Earnings Estimate Revisions for Reliance Steel This metals service-center company is expected to earn $28.26 per share for the fiscal year ending December 2022, which represents a year-over-year ...

  9. Library stack - Wikipedia

    en.wikipedia.org/wiki/Library_stack

    In library science and architecture, a stack or bookstack (often referred to as a library building's stacks) is a book storage area, as opposed to a reading area. More specifically, this term refers to a narrow-aisled, multilevel system of iron or steel shelving that evolved in the 19th century to meet increasing demands for storage space. [1]