No. 78-3435. March 19, 1980. Elliot Moore, N.L.R.B., Washington, D.C., on briefs, for petitioner. John P. Frank, Lewis Roca, Phoenix, Ariz., on briefs, for respondents. On Review of the Order of the National Labor Relations Board of its Order. Before BROWNING and KILKENNY, Circuit Judges, and CAMPBELL, District Judge. The Honorable William J. Campbell, Senior United States District Judge for the Northern District of Illinois, sitting by designation. KILKENNY, Circuit Judge: The National Labor Relations