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chinese gold mining equipment shaker table 1092

  • 2018 Standard Occupational Classification System

    2018 Standard Occupational Classification System. NOTE: The information on this page relates to the 2018 SOC, please see the 2010 SOC System for information on the previous version of the SOC.

  • 2010 Standard Occupational Classification System

    2010 Standard Occupational Classification System. NOTE: The information on this page relates to the 2010 SOC, please see the 2018 SOC System for information on the current version of the SOC.

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