No. 86-7598. Argued and Submitted August 4, 1987. Decided December 16, 1987. Irving M. Friedman, Katz, Friedman, Schur Eagle, Chicago, Ill., for petitioner. Allen R. Ferguson, Jr. and Paul J. Spielberg, N.L.R.B., Washington, D.C., for respondent. Charles E. Sykes, Bruckner Sykes, Houston, Tex., for respondent-intervenor. Application for Enforcement of an Order of the National Labor Relations Board. Before WIGGINS, KOZINSKI and O'SCANNLAIN, Circuit Judges. WIGGINS, Circuit Judge: International Union