The union asks us to set aside an order of the Board based upon a finding that, by certain picketing at Sandia Base, in Albuquerque, New Mexico, the union had violated Section 8(b) (4) (A) of the National Labor Relations Act as amended, 29 U.S.C.A. § 158(b) (4) (A), 120 N.L. R.B. No. 58. The Board asks us to enforce the order. We find no error and the order will be enforced. See National Labor Relations Board v. Local Union No. 313, International Brotherhood of Electrical Workers, AFL-CIO, 3 Cir., 1958, 254 F.2d 221.