Nos. 11–1280 11–1322. 2012-12-4 KLB INDUSTRIES, INC., doing business as National Extrusion and Manufacturing Co., Petitioner v. NATIONAL LABOR RELATIONS BOARD, Respondent International Union, United Automobile, Aerospace and Agricultural Implement Workers of America, UAW, Intervenor. On Petition for Review and Cross–Application for Enforcement of an Order of the National Labor Relations Board. Kerry P. Hastings argued the cause and filed the briefs for petitioner. David Seid, Attorney, National Labor