1

                                                                      EXHIBIT 21





                         SUBSIDIARIES OF THE REGISTRANT



Name of Subsidiary                                       State of Incorporation
- --------------------------------------------------------------------------------

Albex Aluminum, Inc. (fka Wirt Metal Products, Inc.)           Ohio

Ravens, Inc. (fka Ravens Metal Products, Inc.)                 Delaware
         Also does business as Ravens Trailer Sales

Signs and Blanks, Inc.                                         Ohio