No. 96-1990, 96-2089. Argued May 7, 1997. Decided June 27, 1997. On Application for Enforcement and Cross-Petition for Review of an Order of the National Labor Relations Board. (11-CA-15801, 11-CA-16059). ARGUED: Jeffrey Lawrence Horowitz, NATIONAL LABOR RELATIONS BOARD, Washington, D.C., for Petitioner. Matthew Woodruff Sawchak, SMITH, HELMS, MULLISS MOORE, L.L.P., Raleigh, North Carolina, for Respondent. ON BRIEF: Frederick L. Feinstein, General Counsel, Linda Sher, Associate General Counsel, Aileen