Your search Asarco, Inc., et al., Petitioners, v. Occupational Safety and Health Administration, United Statesdept. of Labor, Respondent,united Steelworkers of America, Afl-cio, and Chemicalmanufacturers Assoc., Intervenors.anaconda Minerals Company, and Kennecott Copper Corporation,petitioners, v. Occupational Safety and Health Administration, United Statesdepartment of Labor, Respondent,united Steelworkers of America, Afl-cio, and Chemicalmanufacturers Assoc., Intervenors did not match any document.