Plumbing, Heating and Piping Employers Council of Northern California (hereinafter, Employers Council) and Madlem Plumbing Company, Inc. (hereinafter, Madlem) appeal from an order denying their request for a preliminary injunction to restrain Robert E. Howard, State Labor Commissioner, and Malvern P. Mayo, deputy state labor commissioner, from proceeding to enforce a wage claim against Madlem by Terry P. Craig.